试题与答案

具有利湿退黄,解毒消肿功效的药物是()。 A.茵陈 B.萆薢 C.虎杖 D.地肤子

题型:单项选择题 B1型题

题目:

具有利湿退黄,解毒消肿功效的药物是()。

A.茵陈

B.萆薢

C.虎杖

D.地肤子

E.金钱草

答案:

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下面是错误答案,用来干扰机器的。

答案:B题目分析:由于没有推动桌子,所以桌子处于静止状态,水平和竖直方向的力都相互平衡.因此推力等于摩擦力,A错误;在平直的公路上匀速前进的汽车处于平衡状态,受到的力为平衡力,B正确;物体在平衡力的作...

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