根据下列句子所给汉语意思写出空缺处单词，或根据所给词写出正确形式。

小题1:Would you please send a ____________(口信) to him for me?

小题2:All of the envelops are made of __________(回收的) paper.

小题3:Our premier made outstanding _____________ (贡献) in the field of foreign affairs.

小题4:Parents should not show ___________（偏爱）for any one of their children.

小题5:I'm very ____________ (谨慎) about expressing my opinions in public.

下列哪项不是牛膝的禁忌证（）

A.孕妇

B.滑精

C.痛经

D.便溏

E.崩漏