经降解后能产生N-甲基葡萄糖胺的抗生素药物的特征反应 A．费休法 B．铂电极 C．汞

不具备生产厂的合格证书的吊钩是（）使用的。

A、不允许

B、可以

摩擦起电实际上不是______电荷，而是电子在物体之间的______．

双向翻译

However, the next day, I noticed that my classmates were staring at me 小题1:当我走进数学课堂时and when I went to sit down, I found a piece of paper on my desk that said’ Stupid Sarah got a D! 小题2:I was so upset that I felt like crying. I thought that Hannah must have told my classmates about my grade after promising not to. 小题3:Everyone must have been laughing behind my back!

I was so angry that 小题4:I went straight to Hannah and told her we weren't going to be friends any more because 小题5:她没能信守承诺. She was really upset and swore that she hadn't told anyone, but I know that the only people who see marks are the teacher and the student. She said that someone must have spying on us in the washroom, but I don't believe her explanation. I don't think I can ever truly forgive her. Now I’ve lost my best friend. What shall I do?

心绞痛发作时的疼痛性质是（）

A.行为治疗

B.镇静药物

C.抗精神病药物

D.暗示治疗

E.抗抑郁药物治疗

下列各项，不是闭经气血虚弱证主要症状的是（）

A．月经闭止，腰膝酸软

B．月经量少，经色淡质稀，继而停经

C．头晕眼花

D．神疲乏力

E．食欲不振