把一个边长为4厘米的正方形铁丝框拉成两个同样大小的圆形铁丝框，则每个小圆铁丝框的面积为()。
A. 87π
B. 8/π
C. 16π
D. 16/π
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According to the third paragraph, we can know that ______ .
A. the Eastern firms pay more attention to individual survival
B. the Western firms will share the burden unless incurring losses
C. the Eastern firms would rather preserve jobs in difficult times
D. the Western firms care more about members of the family
Appleyard' s study focuses on the influence of______．
A. traffic volume on the residents
B. rate of crime on the neighborhood
C. social classes on the transportation
D. degree of pollution on the environment
马斯洛关需要的层次理论中的五个需要是指()。
①生理需要;
②安全需要;
③友爱需要;
④享受需要;
⑤尊重需要;
⑥精神上的需要;
⑦自我实现的需要
A. ①②③④⑤
B. ①②⑤⑥⑦
C. ①②③⑤⑦
D. ①②③④⑤⑥
Why can the man and his family stay at this motel？
A. They have a reservation.
B. The motel has several vacancies.
C. They are friends of the owner.
D. Someone else cancelled a reservation.
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