卫生防护距离的级差规定：当100m＜L≤1000m时，级差为( )。A．100m B

一段导体两端的电压为2V时，导体中的电流是0.4A；当加在它两端的电压增加到3V时，通过它的电流是________A，它的电阻是________Ω。当该导体两端电压降为0V时，电阻为 _________Ω。

根据句意,用所给的中文写出单词或首字母补全单词。

1.Last Sunday, she met her favorite singer and got his ______ (亲笔签名).

2. We saw many fish and sharks in the _____( 水族馆).

3. Last Sunday I brought a _____(纪念品) from Japan.

4.A:What ____ did you do there?(别的)   B: We took some photos.

5.Which team _____ the game,Class One or Class Two(获胜)?

6.We went to the Great Wall and h______ a great time.

7.She got lots of g_____ on her fourteenth birthday.

8.A: What about going out for a d______ ?

   B: Sorry, I just feel like going out for a walk.

9．Kids like o_____ activities very much .

10.There were many v______ on vacation in our Yueqing.

— Daddy, can you buy me a new MP3 when you go to Beijing?

— You _____ get one if you are admitted to a key middle school. [ ]

A. could

B. shall

C. may

D. can

毛 * * 明确把官僚资本主义列为革命对象之一的著作是( )

A．《在晋绥干部会议上的讲话》
B．《论联合政府》
C．《将革命进行到底》
D．《中国社会各阶级的分析》

证券投资由于经济周期波动带来的风险均可通过投资多样化、投资组合等方式加以分散。