保护好现场所有消防栓和灭火器，要做到会正确使用消防器材，遇着火时要做到会报警、会逃生

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Dear Amy,

     Susan is my pen pal. She's from London, England. She speaks good English. She's now in Shanghai

with her parents, because they work in Shanghai. Susan can speak a little Chinese.

     There are five people in her family, her parents, her two brothers and she. Her brothers aren't in

China. They are in England.

     She likes singing and dancing very much. Her favorite subject is music. She likes going to the movies

on weekends. She thinks it's fun. I think she's a nice girl.

     Do you want Susan to be your pen pal?

                                                                                                                                        Yours,

                                                                                                                                        Sophia

l. Susan is Sophia's        .          

A. sister      

B. aunt            

C. cousin            

D. pen pal

2. Where does Susan live now?

A. In Shanghai.                      

B. In New York.

C. In Beijing.                        

D. In London.

3. How many brothers and sisters does Susan have?

A. She has two sisters and one brother.

B. She has two brothers but no sister.

C. She has two sisters but no brother.

D. She has two brothers and one sister.

4. What's Susan's favorite subject in school?

A. Chinese.                

B. Music.

C. English.                 

D. Math.

5. Which of the following is TRUE according to the passage?

A. Susan is from China.

B. Susan is in Shanghai with the whole family.

C. Susan likes going to the movies on weekends.

D. Susan speaks good Chinese.

超过整定压力值不启跳的原因不包括（）。

A.阀芯与阀座密和面有水垢、砂粒

B.阀芯或阀座粘住或锈死

C.调整或维护不当

D.阀杆与外壳间隙过小

导游讲解的内容要充实，这是导游语言的哪项基本要求（）

A.言之有物

B.言之有理

C.言之有据

D.言之有情

汉印体现了汉代文化艺术博大雄浑的气象。为适合印面的方形，其布局严正均匀，端庄大方，笔画多方折、盘曲。下列篆刻最能体现上述特征的是（）

A.A

B.B

C.C

D.D

在一项队列研究中，RR值95％可信区间为0.2-1.8，那么研究因素可能是疾病的：（）。

A、危险因素

B、保护因素

C、混杂因素

D、无关因素

E、以上都不是