溴三氟甲烷

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溴三氟甲烷

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阅读理解。

     It was Jimmy's birthday and he was five years old. He got a lot of nice

birthday presents from his family, and one of them was a beautiful drum.

     "Who gave him that thing? "Jimmy's father said when he saw it. "His

grandfather did, " answered Jimmy's mother.

     "Oh," said his father. Of course Jimmy liked his drum very much.  He

made a terrible(可怕的) noise with it,  but his father didn't mind. He was

working during the day and Jimmy was already in bed when he got home in

the evening, so he couldn't hear the noise.

    But one of the neighbors(邻居) didn't like the noise at all, so a few days

later, she took a  sharp (锋利的 ) knife and went to Jimmy's house while he was hitting his drum. She said to him,  " Hello, Jimmy, do you know, there is something very nice inside your drum? Here is a knife. Open the drum and

let's find it. " 

1. Jimmy got a lot of nice presents from his        .

A. classmates        

B. friends      

C. teachers          

D. family

2. Who gave Jimmy the drum?

A. His father.        

B. His mother.

C. His neighbor.      

D. His grandfather.

3. Why didn't Jimmy's father stop him from making noise with the

drum?        

A. Because he liked Jimmy very much.

B. Because he didn't mind.

C. Because Jimmy was in bed.

D. Because Jimmy only played in the evening.

4. One of the neighbors        .

A. liked Jimmy very much

B. enjoyed listening to the sound of the drum

C. wanted to show Jimmy a sharp knife

D. didn't like the noise at all   

5. Jimmy's neighbor really wanted to       

A. stop him making noises

B. make a noise on his drum with a knife

C. show him how to hit the drum

D. find something nice in his drum    

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下列哪种情况引起的中线不调是功能矫治器的适应证()

A.下颌乳尖牙早失

B.乳尖牙磨耗不足

C.上颌侧切牙早失

D.一侧乳磨牙早失

E.下颌髁突肥大

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WMS系统可以独立执行库存操作,与其他系统的单据和凭证等结合使用。

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“除经国会同意外,平时在本王国内征募或维持常备军,皆属违法”。该材料()

A.标志着英国资产阶级革命完成

B.平衡议会和国王的权力

C.说明君主立宪制在英国开始形成

D.说明责任内阁制在英国确立

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声波透射法零时校正不是考虑哪个因素?()

A.发射机的延迟

B.发射换能器的延迟

C.接收换能器的延迟

D.耦合水的延迟

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