下列称谓中所含光学知识原理达两种以上的是( )。A．镜中花，水中月 B．凸透镜 C

某传染病病室，长5m、宽4m、高4m，用纯乳酸进行空气消毒，纯乳酸用量是

A．9.6ml

B．7.2ml

C．6.4ml

D．4.2ml

E．2.4ml

天然大理石饰面板材不宜用于室内()。

A.墙面 

B.大堂地面 

C.柱面 

D.服务台面

句型转换。

1. What other things did you do on your day off? (变为同义句)

    _____ _____ did you do on your day off?

2. Our class had a great time on the school trip. (变为同义句)

    Our class _____ _____ on the school trip.

3. Our school trip was very interesting. (对画线部分提问)

    _____ _____ your school trip?

4. There was only one sandwich. (对画线部分提问) 　

    _____ _____ _____ _____ there?

5. He met Tina on his way home. (变为否定句) 

   He _____ _____ Tina on his way home.

我校武术俱乐部学习的太极拳种类是（）。

A、42式

B、24式

C、陈式太极拳

肝性脑病时有肾损害者，可选用的口服抗生素是（）

A.新霉素

B.卡那霉素

C.氨苄青霉素

D.甲硝唑

E.庆大霉素