题目内容
（请给出正确答案）
A(n) ______ line of cars stretched as far as the eye could see.
A．continual
B．constant
C．eternal
D．continuous
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164 A line manager possesses information which the project team needs, but withholds the information. The results in a(n):
A. Blindspot
B. Facade
C. region of influence
D. Communication power base
E. None of the above
A Blindspot
B Facade
C region of influence
D Communication power base
E None of the above
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
Purchasing the new production line will be a ________ deal for the company.
A．profitable
B．tremendous
C．forceful
D．favorite
Line of balance charts are used most frequently in:
A.Engineering
B.Marketing
C.Manufacturing
D.Accounting
E.Contracts and procurement
