单项选择题

The following data relates to questions 13 and 14. The wholesale price index is made up from the prices of three items. More information is as follows. Calculate Laspeyre price index in 20X2, if 20X0 is taken as the base year.

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固定资产卡片输入是固定资产子系统全部输入中，数据输入量最大的部分。

答案：正确

不定项选择

CADD有两种设计药物的方法，一种是基于配体的药物设计，一种是基于受体的药物设计

A．错误
B．正确