关于发酵过程的叙述正确的是（） A.温度30～37℃ B.相对湿度70％～80％ C

青皮的功效是（）
枳实的功效是（）

A.疏肝破气，消积化滞

B.破气散结，疏肝行滞

C.破气除痞，化痰消积

D.疏肝破气，化痰除痞

E.疏肝破气，散结消痞

词汇考查。

1. It's Sarah's birthday tomorrow. Can you give me your a              ?

2. I have a good c               named Joe.

3. They went to the beach i               of climbing mountains.

4. Many people have their p               computers at home.

5. There are many m               in the room. You'd better not put the food here.

6. My brother keeps a r               as a pet. It's white and it has two long ears.

7. Barry is i              in English, so he is good at it.

8. Look at my photo a              . There are many photos in it.

9. "P              " is another way of saying "gift."

10. The boy reads English for an hour every moring, so he makes p              .

结核杆菌在下列哪一种情况下容易被消灭

A．直接阳光下

B．用青霉素

C．暴露在空气中

D．用强碱性肥皂

E．在胃分泌物中

乙肝的传播途径有：（）

A.日常生活接触传播

B.食物传播

C.饮水传播

D.经血传播

E.性传播

如图所示，abcd是一个正方形盒子．cd边的中点有一个小孔e．盒子中有沿ad方向的匀强电场．一个质量为m带正电粒子（重力不计）从a处的小孔沿ab方向以初速度v₀射入盒内，并恰好从e处的小孔射出．求：（1）该带电粒子从e孔射出时的速度大小．（2）该过程中电场力对该带电粒子做的功．