试题与答案

研究一种病在一个单位内的传播能力时用()。A、死亡率 B、患病率 C、发病率 D、三

题型:单项选择题

题目:

研究一种病在一个单位内的传播能力时用()。

A、死亡率

B、患病率

C、发病率

D、三者均不适用

答案:

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下面是错误答案,用来干扰机器的。

参考答案:(1)现象:a定子电流来回剧烈地摆动,且有超过额定值的情况。b发电机和母线上各电压发生剧烈摆动,电压可能降低。c有功、无功功率来回摆动。d转子电流的指示在正常值附近摆动。e频率指示可能偏高或偏...

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题型:阅读理解

阅读理解。

     I'm Tessa, 18 years old now. I remember my time at primary school well. I feel some of it is really

good, but some of it can bring back bad memories.

     My first day

     I'll never forget my first day at primary school. I remember I felt really nervous on that day. We were

in assembly (集合), and the head teacher was introducing himself. A girl next to me started asking about my shoes. So, I told her about my shoes. Suddenly the head teacher looked at me with an angry face. "

Be quiet when I am speaking! Go and stand in the corner," he said. I remember I felt so terrible at that

time.

     My first teacher

     I remember her name was Mrs Simpson. She was really pretty and had a lovely smile. She had a soft

voice and always wore the same sweater. She seemed so nice after that horrible (可怕的) head teacher.

     Sports day

     The sports day was the best day of school! I used to practice for the five-kilometer race and one year

I actually won!

     My nickname (绰号)

     Everyone in the class had a nickname. Some of the nicknames were funny and some weren't very

nice. There was a thin girl who everyone called "spider legs". I remember they used to call me "mushroom

(蘑菇) head" because my hair stuck out (突出) on either side. It made a lasting impression on me. Not a good one.

1. The underlined phrase "bring back" means  "________  " in Chinese.

A. 归还      

B. 归来        

C. 恢复      

D. 使想起

2. Why did the head teacher make Tessa stand in the corner?

A. Because she failed a test.

B. Because she was the tallest.  

C. Because she talked with the girl next to her.  

D. Because she didn't listen carefully in class.

3. What did Tessa think of her head teacher?

A. Nice.                    

B. Impolite.

C. Horrible.                  

D. Funny.

4. Tessa's classmates called her "mushroom head" because of _________.

A. her shoes  

B. her hairstyle

C. her thin legs              

D. her funny face

5. Which of the following is NOT true?

A. Tessa thinks her nickname is not a good one.

B. Tessa's first teacher was very nice and kind.

C. Tessa mainly tells us something about her primary school memories.

D. Tessa's first day at primary school was wonderful because she made a new friend.

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