The message the author wishes to convey in the passage is that ______.
A. human civilization remains gorious though it is affected by climatic changes
B. mankind is virtually helpless in the face of the dramatic changes of climate
C. man has to limit his activities to slow down the global warming process
D. human civilization will continue to develop in spite of the changes of nature
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Mary ______that piece of cake for twenty yuan.
A. [A] bought
B. [B] cost
C. [C] spent
If you want to try for a job of a secretary in Fairemont Hotel, you______.
A. [A] have to be a woman and know foreign languages
B. should be younger than 40 years old
C. have to be taller than 1.70 meters
投资变化所导致的国民收入的成倍增加现象，被称为（）。
A. 加速效应
B. 挤出效应
C. 乘数效应
D. 政策效应
国务院总理温家宝签署国务院令，宣布自2004年12月1日起施行（）。
A. 《劳动保障监察条例》
B. 《粮食流通管理条例》
C. 《中华人民共和国道路交通安全法实施条例》
D. 新修订的《信访条例》
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