毛细管柱气相色谱法已验证了12种有机磷农药的分析，试至少举出8种。

可以降低急性胰腺炎发生的是（）

A.经常服用磺胺药或抗生素

B.积极治疗十二指肠疾病

C.注意饮食卫生

D.防止胆道疾病的发生

E.经常服用消化酶类药物

在本篇中须顿服的方剂有（）

A.薏苡附子败酱散

B.大黄牡丹汤

C.王不留行散

D.排脓散

E.排脓汤

句型转换。

1. "Could I copy your homework?" He asked me. (改为间接引语)

     He asked me                                           copy              homework.

2. The girl was shopping when the accident happened. (对划线部分提问) 

                               the girl              when the accident happened?

3. We don't know when we will leave the city. (改为同义句)

    We don't know                                        the city.

4. There will be less pollution in the future. (改为反意疑问句)

    There will be less pollution in the future,                           ?

5. I think the dress is in style. (改为否定句)

    I              think the dress              in style.

6. His sister is running very fast. (改为感叹句)

                               his sister is running!

快速加热器采用行程式结构，它的优点是（）。

A．热效率高

B．传热系数大

C．结构紧凑、占地面积小

D．可以储存热水、对水质没有一定要求

大体积混凝土工程的施工宜釆用分层连续浇筑施工或推移式连续浇筑施工。