记存的研究模型分解剖部分和基底部分，基底部分的高度约为解剖部

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问题单项选择题

记存的研究模型分解剖部分和基底部分，基底部分的高度约为解剖部分的（）

A.1／5～1／4

B.1/4～1／3

C.1／3～1／2

D.1/2～2/3

E.1

答案

参考答案：C

填空题

单项选择题

A．Americans have not chosen legalization as a solution to the drug problem.

B．The current drug war is not working and legalization may be the only solution.

C．The black market would really disappear with the legalization of drugs.

D．Politicians who have answers to the drug problem claim the most votes.