绝缘手套应不发黏，不发脆，质地柔软，并在进行卷挤时不漏气

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Dear Wang Lin,

    It's a good idea to bring a small present when you go to a dinner party. Flowers are always nice or

you may bring a bottle of wine if you know that your friends drink it. You should arrive on time or five to

ten minutes late. Don't get there early. If you're going to be more than fifteen minutes late, you should

call and tell them.

     Try to be free at the dinner table. If you don't know about choosing the right fork or knife, just watch

the other people, and follow them. If you still have no idea of what to do, ask the person next to you.

      If you like the food, say so. Of course, you'll thank them for the meal and for their kindness. It's also

a good idea to send a thank you card the day after.

                                                                                                                                               Yours,

                                                                                                                                                Rose

1. Wang Lin wants to         .

A. make friends with Rose

B. know some social customs for a dinner Party

C. make her friends happy

D. give her friends a surprise

2. Rose is possibly          .

A. a good housewife

B. a TV hostess(主持人)

C. a member of the dinner party

D. a friend of Wang Lin's

3. If you're asked to a dinner party but not sure about what to bring as a present, it'sgood to bring            .

A. some fruits

B. a bottle of wine

C. some flowers

D. a knife and a fork

4. Which of the following is NOT proper(适当的) for joining in a dinner party?

A. Get there 15 minutes earlier.

B. Make yourself at home.

C. Follow others to use forks and knives.

D. Thank your friends for the meal.

5. From the letter we've learned that it's very           to know something about American social customs.

A. difficult                  

B. friendly

C. enjoyable                

D. helpful

男性，65岁，持续性上腹部疼痛半年，消瘦、贫血、乏力，偶有恶心、呕吐。查休呈贫血貌，上腹部剑突下轻压痛。应采用哪种辅助检查确定诊断

A．X线上消化道造影

B．胃液分析

C．B超检查

D．纤维胃镜检查

E．血清胃泌素测定

The children had a good time _________Christmas Eve.[ ]

A. in                    

B. at

C. to                    

D. on

下列关于局部排风罩的说法中错误的是( )。

A．接受式排风罩与外部吸气罩的根本区别在于罩外气流的成因

B．排风罩造成控制风速随控制距离增加而迅速衰减

C．由于密闭罩将有害物源密闭于罩内，故不需要排风

D．吹吸式排风罩在控制距离较大时有其优越性

“新标准”中，要求在采掘工程设计施工前，要按时提交由总工程师批准的（）。

A.采区地质说明书

B.回采工作面地质说明书

C.掘进工作面地质说明书

D.水文地质说明书