你有多少支蜡笔()
A.How many pens do you have
B.How many crayons do you have
C.How many crayon
B、How many crayons do you have
A.How many pens do you have
B.How many crayons do you have
C.How many crayon
B、How many crayons do you have
A.How many balls can you see
B.How many balls do you see
C.How many balls do you have
Caterpillar Tractor, one of the largest producers of farm machinery in the world, has hired you to advise them on pricing policy. One of the things the company would like to know is how much a5 percent increase in price is likely to reduce sales. What would you need to know to help the company with this problem? Explain why these facts are important.
A.14
B.16
C.30
D.32
How many students were shot dead in 1997 in US schools?
A. 10
B. 9
C. 12
D. 22
From the passage, how many places have the name Valencia?
A. One.
B. Two.
C. Three.
D. Four.
At the beginning, how did many scientists view Peppeberg's work?
A. It would reveal a creature's mind.
B. It would probably end in failure.
C. It would be hard to judge its value.
D. It would be a long-term project.