所采购的原材料的交货时间宜早不宜迟，因此交货期越早越好。( )
A. 对
B. 错
What conclusion can be drawn from the man’s reply
A. He hates playing football.
B. He enjoys playing football.
C. He can’t play football.
D. He is not a good student.
Questions 18--21 are based on the following passage. which of the following is elected in the United States
A. President.
B. Vice-president.
C. The members of Congress.
D. All of abov
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