残疾军人的残疾等级共划分为( )。A．六级 B．八级 C．十级 D．十二级 E．五

阅读理解。

     You're welcome, ladies and gentlemen. Everything in our restaurant is cheap and delicious. Let's have

a look. For breakfast, you can eat porridge, eggs and noodles. For lunch and dinner, you can have rice,

dumplings, different kinds of meat and vegetables. There are also some drinks for you. Come and have

a meal, please. It's a good place to enjoy yourself.

     Breakfast: porridge ($1.00), egg ($1.00), noodles ($2.50--$5.00).

     Lunch and dinner: rice ($1.00), dumplings ($5.00), egg ($1.00), cabbage ($6.00), carrots ($8.00),

potatoes($8.00), chicken ($12.00), fish ($15.00),mutton ($18.00), green tea ($2.00), iced tea ($3.00),

orange juice ($4.00).

    Business hours: Mon.--Fri. 6:30 a.m.--9:30 p.m.; Sat.--Sun. 7:00 a.m.-- 10:00 p.m..

1. What can you eat for breakfast in the restaurant ________.

A. Dumplings.

B. Beef noodles.

C. Ice cream.

D. French fries.

2. You can have a meal in the restaurant ________.

A. at 6:40 on Saturday morning

B. at 9:45 every evening

C. at 11:30 every morning

D. at 11:30 on Sunday night

3. If you have rice, cabbage and green tea for lunch, you need to pay ________.

A. $8

B. $9

C. $10

D. $11

4. Mr. Black goes to the restaurant with $22 for dinner. He can order rice, potatoes, chicken and ________.

A. iced tea

B. orange juice

C. green tea

D. an egg

5. What does the speaker probably (可能) do?

A. A reporter.

B. A clerk.

C. A waiter.

D. An actor.

阅读理解。

     One Sunday afternoon Mr Green and his child, Mary, are in a big shop. Mr Green likes Mary and wants

to buy a new dress for her. Mary doesn't like the new dress. She likes something to eat. So her father buys

two kilos of apples for her, too. Mary also wants to buy some picture-books and colored pencils. There are

many things and many people in the shop. They are men and women, old and young. They all want to buy

something there. The people in the shop are very friendly.

1. It is ________.

A. Saturday

B. Monday

C. Friday

D. Sunday

2. Mary and _______ are in the shop.

A. Mrs Green

B. his father

C. her father

D. her mother

3. Mary likes to buy ________. 　

A. a new dress 　　

B. colored books 　

C. apples, picture-books and colored pencils 　　

D. something to drink

试述静息电位产生的机制。

妊娠高血压综合征的最基本的病理生理变化为

A．全身小动脉痉挛
B．血液黏稠度增加
C．高血压
D．蛋白尿
E．肾小球滤过率降低

下表是对某地区的某种遗传病的调查结果。其等位基因用P和p表示。请分析回答：

第三组某家庭一女儿既患该病又患白化病（该病基因与白化病基因不在一对同源染色体上），这对肤色正常夫妇再生一正常儿子的概率为（）