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问题 选择题

Only when I left my parents for Italy ________ how much I loved them.[    ]

A. I realized  

B. I had realized

C. had I realized  

D. did I realize

答案

答案：D

阅读理解

阅读理解。

     This is No.12 High School. My friend Dongdong is in this school. Dongdong has long hair, a big nose, a small mouth and big eyes. He is thirteen. He is in Class Two, Grade Seven. He's a good student. He

has two good friends in his school. They are Jim and Jack. They're brothers(兄弟). They are fourteen.

They have small noses, small eyes, but they're very tall(高的). Jim, Jack and Dongdong are in the same

class. Mr. Lee is their(他们的) teacher. They are good friends.

1. Dongdong is in _____.

A. No.2 High School

B. Class 2, Grade 1

C. Class 2, Grade 7

D. Class 2, Grade 8

2. How old is Dongdong? He is _____.

A. fourteen

B. thirteen

C. twelve

D. eleven

3. Mr. Lee is _____.

A. Tiantian's brother

B. Tiantian's teacher

C. Dongdong's teacher

D. Jim's brother

4. Jim is _____.

A. an English boy

B. an English teacher

C. a Chinese boy

D. Sorry, I don't know

5. Who has big eyes?

A. Jim.

B. Dongdong.

C. Tiantian.

D. Jack.
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选择题
如图所示为一磁流体发电机示意图，A、B是平行正对的金属板，等离子体（电离的气体，由自由电子和阳离子构成，整体呈电中性）从左侧进入，在t时间内有n个自由电子落在B板上，则关于R中的电流大小及方向判断正确的是（　　）

A．I= ，从上向下

B．I= ，从上向下

C．I= ，从下向上

D．I= ，从下向上
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