假设某个小国的总量生产函数为Y=AK0.3L0.7。当该国的全要素生产率增加一倍后，该国的劳动边际产出将()。
A. 增加不到一倍
B. 增加一倍
C. 减少不到一倍
D. 减少一倍
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Possessing a car gives a much greater degree of ______, enabling the driver to move around
A. traveling
B. movement
C. mobility
D. freedom
Other scientists were skeptical of the report because ______.
A. cancer takes a long time to develop
B. single genes were not thought to cause cancer
C. genes would take years or even decades to bring about cancer
D. the researcher's report was too simple
A．onlyB．bestC．sameD．biggest
A. only
B. best
C. same
D. biggest
亨利定律的表达式之一为pe=Ex，若某气体在水中的亨利系数E值很大，说明该气体为易溶气体。()
A. 正确
B. 错误
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