社区干预试验中，研究对象的随机分组是为了（）. A.增加参与研究对象的依从性 B.使

单细胞悬液保存最常用的方法有________________、____________________和________________________。

关于老年人健身运动原则的叙述错误的是（）。

A.健身锻炼要秩序渐进

B.健康锻炼要随心所欲，想做就做

C.健康锻炼要因人而宜，选择适合自己情况的运动量

D.健身锻炼要灵活多样，不可千篇一律

E.运动前做好准备工作，运动后做整理活动

阅读理解。

     A famous teacher was speaking to the students at our school. He began his lesson by holding up a

￡100 bill. Then he said to the three hundred students, "Who would like to have this ￡100 bill?" The

students began to put up their hands at once.

     Then he said, "I am going to give this bill to one of you, but first, let me do this." He then made this

bill into a ball. Then he said, "Who wants it?" Hands went into the air.

     "Well," he said, "What if I do this?" and he dropped it on the floor and stepped on it. He picked up the

dirty, crumpled bill and said, "Who still wants it?" Hands went back into the air.

     "My friends," he said, "You've learned a valued lesson today. No matter what I did to the money, you

still wanted it because it didn't go down in value. It was still worth ￡100.

     Many times in our lives, we're dropped, crumpled, and stepped on by the chances we take and the

things that happen to us. We feel as if we are worth nothing. But remember, no matter what has happened

to you, you will never lose your value: you are always valuable to those who love you. Your value doesn't

come from what you drop or whom you know,but WHO YOU ARE.

     You are special and valuable. Don't ever forget it!

1. The story happened ______.

A. when the teacher gave the students some advice on how to learn English.

B. when the students were having a meeting.

C. when the teacher gave the students a speech.

D. when the students were discussing something interesting with their teachers.

2. Even though the money was dirty, it _______.

A. went up in value

B. was worth much

C. didn't reduce in value

D. was still ours

3. The underlined sentence in the third paragraph means_______.

A. the students put up their hands again.

B. the students put down their hands.

C. the students agreed to what the teacher said

D. the students put their hands in front of them

4. Why did the famous teacher use a ￡100 at his lesson?

A. Because he wanted to give a lecture about money.

B. Because he was used to dropping a bill on the floor and stepping on it.

C. Because he was going to give the bill to one of the students.

D. Because he wanted to make the students know what the value was.

5. What lesson can you learn from the passage?

A.￡100 bill is worth the same no matter what you do with it .

B. All people love money most.

C. Your value doesn't change no matter what happens to you.

D. The value of money changes when it is made dirty.

硬膜外麻醉时产生全脊麻的发生率平均约（）

A.0.005%

B.0.01%

C.0.024%

D.O.015%

E.O.045%

外文药品名中带有SR、ER的剂型属于

A．缓、控释剂
B．滴丸
C．膜剂
D．栓剂
E．含漱剂