AIDS control and prevention is a to China as well as the whole world．
#6429
A
surprise
B
challenge
C
reaction
D
threat
推荐题目
一Tell us, Mark ,what is the ____ of the American Civil War?一 Well, is it because the black slaves wanted freedom?
#6280
A
effect
B
cause
C
result
D
reason
In the______of proof , the police could not take action against the man .
#7081
A
lack
B
shortage
C
absence
D
failure
Because of the financial crisis,I have no ready____ on me. Can I pay you tomorrow?
#7575
A
deposit
B
cheque
C
coin
D
cash