题目内容

Most standard cell-phone software offers a lot of choices for re-configuration.

A. 对
B. 错

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丁达尔效应是( )的光学性质

A. 溶液剂
B. 溶胶剂
C. 混悬剂
D. 乳剂

Theresistanceofthefluidflowinsideacylinderdevelopsinto

A. power
B. heat
C. pressure
D. alloftheabove

将药物制成溶胶分散体系,可改善药物的吸收,使药效增大或异常,对药物的剌激性也会产生影响。

A. 对
B. 错

Acylinderhasaboreareaof220cm2,andthepistonmovesat250cm/min.Theflowrateintothepumpis

A. 55L/min
B. 50L/min
C. 54L/min
D. noneoftheabove

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