支柱入井前应逐根进行压力试验。

阅读理解。

     Mr Edwards likes singing very much, but he is bad at it.  He went to dinner at a friend's house last

week, and there were some other people there too.

     They had a good dinner, and then the hostess went to Mr Edwards and said, "You can sing, Peter.  

Please sing us something."

     Mr Edwards was very happy. He began to sing an old song about the mountains of Spain. They

listened to it for a few minutes and then one of them began to cry. She was a small woman with dark hair

and very dark eyes.

     One of the other people went to her, put his hand on her back and said, "Please don't cry. Are you

Spanish?"

     Another young man asked, "Do you love Spain?"

     ''No," she answered, "I'm not Spanish, and I've never been to Spain. I'm a singer, and I love music."

根据短文内容，判断正（T）误（F）。

( )1. Mr Edwards likes singing very much.

( )2. He sang before dinner.

( )3. He sang a song about England.

( )4. The woman cried because she loved Spain.

( )5. A Spanish means a man or woman of Spain.

在做“观察水沸腾”的实验时，如图所示，甲、乙、丙三组同学分别从A、B两套器材中任选一套来完成实验．（实验室已准备多套A、B装置）

(1)甲组同学发现所测水的沸点高于100℃，他们选择的是____(填“A”或“B”)套装置。 

(2)乙、丙两组同学虽然选用的实验装置相同，但水开始沸腾的时刻不同，他们绘制的沸腾图象如图C所示，得到a、b两种不同图象的原因是水的_______不同。

 (3)通过分析图象C，归纳出水沸腾的特点是：

①___________；

②___________．

（）不是EDI的优点。

A.共同分享信息

B.共同进行物流分析

C.提高物流效率

D.降低物流成本

虫白蜡在包衣工序中用于（）

A.隔离层

B.粉衣层

C.糖衣层

D.有色糖衣层

E.打光