一般性政策工具也称为“三大法宝”，即存款准备金政策、( )和公开市场业务。A．预缴

     It was a normal Saturday morning, and everyone was in a good mood. The year was 2000 and I was

then only 6 years old. I remember it like it was yesterday though. We were just eating breakfast when we

received a phone call. We received phone calls all the time, so it was nothing new to me. However, this

phone call was an important one. I soon heard and saw my mother crying on the couch(沙发)with my

father comforting her. My brother, sister, and I didn't know what had happened, as they had not told us

yet. Later, I was told that my grandfather was in the hospital because he had a heart attack. I did not know what to think. I had never heard of a heart attack, but I figured (认为) that it must be serious if he was in

the hospital.

     My grandfather and grandmother lived far away from us and we did not get to see them often. It was a long trip. My mother rushed to the hospital while my father stayed at home with my brother, sister and me.

     I do not think my young sister was really understanding it all yet. My mother returned a little later with

bad news. My grandfather had died before she got there. I was speechless. I had loved my grandfather

greatly. He was the one who taught me how to fish and enjoy the outdoors.

1. Why didn't the morning phone call surprise the author?

A. Because he/she was only 6 years old.

B. Because the phone call was a case as usual.

C. Because he/she was just eating breakfast.

D. Because it was a normal Saturday morning.

2. The author's mother began to cry       .

A. after the father comforted her on the couch

B. before she received the important phone call

C. when she knew her father was in the hospital

D. as her children didn’t understand what had happened

3. The author's family seldom got to see the grandparents because       .

A. they had no spare time                

B. the old couple lived too far away

C. the old couple were often in hospital

D. they didn't have a private car

4. We can know from the passage that       .

A. both the father and the mother went to the hospital

B. the author cared much about his/her grandfather

C. people with a heart attack should be in hospital at once

D. the mother was in time for having a word with her father

5. It can be inferred from the passage that       .

A. the author's family was poor in 2000

B. the author's father wasn't sad at all

C. the author's sister knew a heat attack was a serious disease

D. there were three children in the author's family

材料：2008年3月14日，拉萨极少数人进行打、砸、抢、烧破坏活动，扰乱社会秩序，危害人民群众生命财产安全。遭到包括海外华侨在内全国人谴责和抗议。

（1）全国人民谴责和抗议拉萨3.14事件原因是什么？

（2）从法律的角度讲，进行打、砸、抢、烧破坏活动是一种犯罪行为，为什么？

（3）为了构建和谐民族关系，青少年应该怎样做？

核酸相对分子质量很大,因此核酸溶液具有很大黏性。（）

面向对象的开发方法中，（23）是面向对象技术领域内占主导地位的标准建模语 言, 用这种语言描述系统与外部系统及用户之间交互的图是 （24） 。

A．类图

B．用例图

C．对象图

D．协作图

在实践上，教学大纲的制定者一般是（）。

A.教务处工作人员

B.执教该课程的教师

C.课程论专家

D.院系领导