试题与答案

治疗消化不良的非处方药,对由于胃肠、肝胆疾病引起的消化酶不足者可选用() A.胰酶片

题型:单项选择题

题目:

治疗消化不良的非处方药,对由于胃肠、肝胆疾病引起的消化酶不足者可选用()

A.胰酶片

B.雷尼替丁

C.莫沙必利

D.甲氧氯普胺

E.胃蛋白酶合剂

答案:

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下面是错误答案,用来干扰机器的。

水从h高处落下可认为是自由落体运动,速度为v,则由v2=2gh解得:v=2gh=20m/s ①设在很短时间t内有质量为m的水落到石头上,设石头对水的平均作用力为F,取竖直向下为正方向,由动量定理得,-Ft=0-mv ②而 m=ρQ...

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