题目内容

Nowhere ______ so many people planting trees.

A. have we seen
B. we have seen
C. have seen we
D. we saw

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我患有漫游癖，只有在闲逛旅游时，我才感到愉快。

A. 是
B. 否

Scientists ______that bacteria through microscopes for many years．

A. studied
B. have studied
C. had studied
D. have seen studied

关于颗粒剂的特点叙述错误的是( )

A. 剂量较小，服用方便
B. 吸收、奏效较快
C. 适于工业生产，产品质量稳定
D. 可以包衣制成各种缓释制剂
E. 包装不严，易吸湿结块

油性软膏基质中加入羊毛脂的作用是 ( )

A. 提高软膏中药物的渗透性
B. 防止基质氧化、酸败
C. 增加药物的溶解度
D. 提高药物的稳定性
E. 减少药物的刺激性