题目内容
（请给出正确答案）
Continually measuring and monitoring the actual cost versus the budget is done to _____.
A.analyze the reasons for variances
B.establish the variances
C.identify the problems
D.All of the above.
E.None of the above.
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更多“Continually measuring and moni…”相关的问题
How can I ever concentrate if you are continually ______ me with silly questions？
A．intimating
B．interfering
C．interrupting
D．invading
A.continually
B.steadily
C.continuously
D.currently
ace level (i.e. the complement of a mark) for one element period. This element is called the start bit and has a duration of T seconds. The transmitter then sends the character, l bit at a time, by placing each successive bit on the line for a duration of T seconds, until all bits have been transmitted. Then a single parity bit is calculated by the transmitter and sent after the data bits. Finally, the transmitter sends a stop bit at a mark level (i.e. the same level as the idle state) for one or two bit periods. Now the transmitter may send another character whenever it wishes.
At the receiving end of an asynchronous serial data link, the receiver continually monitors the line looking for a start bit. Once the start bit has been detected, the receiver waits until the end of the start bit and then samples the next N bits at their centers, using a clock generated locally by the receiver. As each incoming bit is sampled, it is used to construct a new character. When the received character has been assembled, its parity is calculated and compared with the received parity bit following the character. If they are not equal, a parity error flag is set to indicate a transmission error.
(1).When the transmitter wishes to send data, it first ().
A.places the line in a space level
B.puts the line in a mark level
C.sends a stop bit
D.places a bit at logical l level
(2).Then a single parity bit is calculated by the transmitter and ().
A.compared with the received parity bit
B.sent with the data bits
C.sent after the data bits
D.sent before the data bits
(3).At the receiving end of an asynchronous serial data link, the receiver continually monitors the line().
A.waiting for the end of the start bit
B.looking for a start bit
C.generating a clock
D.constructing a new character
(4).When the transmitter wishes to send data , it first sends().
A.a character at the same time
B.a character to the line
C.the start bit
D.a mark level to the line
(5).The transmitter then send the character, for a duration of T seconds().
A.each bit
B.all bits
C.successive bits
D.a start bit and a character
When the Civil War ended in 1865 , the Fourteenth and Fifteenth Amendments to the Constitution adopted in 1868 and 1870 granted citizenship and right to vote to blacks but not to women. Discouraged but resolved, feminists influenced more and more women to demand this right. In 1869 the Wyoming Territory had yielded to demands by feminists, but eastern states resisted more stubbornly than before. A women' s voting bill had been presented to every Congress since 1878 but it continually failed to pass until 1920, when the Nineteenth Amendment granted women the right to vote.
With what topic is the passage primarily concerned？
A．The Wyoming Territory.
B．The Fourteenth and Fifteenth Amendments.
C．Abolitionists.
D．Women's Right to Vote.
As an example of how this worked, when facial tissues (面巾纸) were first put on the market in 1924, they were made in limited quantities and sold at 65 cents per box of 200. People like these facial tissues immediately and began asking for them when they went into different stores. Because there was such a demand for the product, manufacturers began making tissues in larger and larger quantities. Because the manufacturers were making tissues in greater quantities, their production costs were lowered, so that the price of tissues went down. (80) In the meanwhile, the quality of facial tissues was constantly improving, because more manufacturers went into the business of making tissues, and each manufacturer strove to make his product better than his competitors’. Today, instead of costing 65 cents, a box of 200 tissues costs around one—third of that price, and they are both softer and stronger.
When people are free to compete—when they are free to make more things and make them better—everyone benefits.
In regard to the production of goods in greater quantities, the author states that ______.
A．the price of the goods should drop
B．the quality of the goods should improve
C．the price and the quality should both rise
D．the quality and the price should both drop
Childhood is a time when there are few responsibilities to make life difficult. If a child has good parents, he is fed, looked after and loved, whatever he may do. It is impossible that he will ever again in his life be given so much without having to do anything in return. In addition, life is always presenting new things to the child—things that have lost their interest for older people because they are too well-known. But a child has his pains: he is not so free to do what he wishes to do; he is continually being told not to do things, or being punished for what he has done wrong.
When the young man starts to earn his own living, he can no longer expect others to pay for his food, his clothes, and his room, but has to work if he wants to live comfortably. If he spends most of his time playing about in the way that he used to as a child, he will go hungry. And if he breaks the laws of society as he used to break the laws of his parents, he may go to prison. If however, he works hard, keeps out of trouble and has good health, he can have the great happiness of building up for himself his own position in society.
According to Paragraph 2, the writer thinks that______.
A．life for a child is comparatively easy
B．a child is always loved whatever he does
C．if much is given to a child, he must do something in return
D．only children are interested in life
Childhood is a time when there are few responsibilities to make life difficult. If a child has good parents, he is fed, looked after and loved, whatever he may do. It is impossible that he will ever again in his life be given so much without having to do anything in return. In addition, life is always presenting new things to the child—things that have lost their interest for older people because they are too well-known. But a child has his pains; he is not so free to do what he wishes to do; he is continually being told not to do things, or being punished for what he has done wrong.
When the young man starts to earn his own living, he can no longer expect others to pay for his food, his clothes, and his room, but has to work if he wants to live comfortably. If he spends most of his time playing about in the way that he used to as a child, he will go hungry. And if he breaks the laws of society as he used to break the laws of his parents, he may go to prison. If however, he works hard, keeps out of trouble and has good health, he can have the great happiness of building up for himself his own position in society.
According to Paragraph 2, the writer thinks that
A．life for a child is comparatively easy
B．a child is always loved whatever he does
C．if much is given to a child, he must do something in return
D．only children are interested in life
Youth is a time when there are few tasks to make life difficult.If a child has good parents, he is fed, looked after and loved.It is impossible that he will again in his life be given so much without having to do anything in return.In addition, life is always presenting new things to the child— things that have lost their interest for older people.But a child has his pains: he is not so free to do what he wishes to do; he is continually being told not to do things, or being punished for what he has done wrong.
When the young man starts to earn his own living, he can no longer expect others to pay for his food, his clothes, and his room, but has to work if he wants to live comfortably.If he breaks the laws of society as he used to break the laws of his parents, he may go to prison.If, however, he works hard, keeps out of trouble and has good health, he can have the great happiness of building up his position in society.
1.People can experience happiness if they ________.
A.always think of the past and regret it
B.value the present
C.are no longer young
D.become old and have much experience
2.When people were young, they used to _______.
A.be in charge of many business
B.have few things to think about and take on
C.look after their younger sisters and brothers
D.face a lot of difficulties
3.The pains of children lie in the fact that _______.
A.no one helps them make right decisions
B.they are not allowed to do what they like to do
C.they cannot be accepted and praised by others
D.they are often beaten by their parents
4.Children are usually happy because _______.
A.old people lose interest in them
B.they are free to do wrong
C.they are familiar with everything going on around them
D.things are new to them
5.The author presents the passage in a(n) _____ tone.
A.hostile
B.enthusiastic
C.critical
D.instructive
In contrast to the nonfunctional appeals of the fine arts, the first purpose of the applied arts is to serve some useful function. Lucy Lewis, a traditional potter from Acoma Pueblo in New Mexico, has applied a visually exciting surface decoration to her water jar, using the chewed end of a yucca spine to paint the fine lines. But the jar's main reason for being "however" is to hold water. Some of the people of Acoma, which may be the oldest continually inhabited city in the United States, still follow the old ways, carrying water for drinking, cooking, and washing up to their adobe homes from natural rock cisterns on the cliff walls below. The forms of their water jars are therefore designed to prevent spilling and to balance readily on one's head. The pots must also be light in weight, so Acoma water jars are some of the world' s thinnest-walled pottery. Interestingly, the languages of most Native American peoples do not include a word that means "fine art." While they have traditionally created pottery, basketry, and weaving with a highly sophisticated sense of design, these pieces were part of their everyday lives.
The applied art of pottery-making, or ceramics, is one of the crafts, the making of useful objects by hand. Other applied art disciplines are similarly functional. Graphic designers create advertisements, fabrics, layouts for books and magazines, logos for corporate identification, and so on; industrial designers shape the mass-produced objects used by high-tech societies, from cars, telephones, and teapots, to one of the most famous visual images in the world: the Coca- Cola bottle. Other applied arts include clothing design, interior design, and environmental design.
The water jar mentioned in the second paragraph can NOT be described as ______.
A．light in weight
B．made by a Native American
C．an example of fine art
D．an object to be used
