飞机上冲泡茶的正确方法是：先将2-3包茶包放入加水壶中，加入9成满的开水，浸泡一会儿

阅读短文，从A-D 中选出恰当的句子填入文中1-4 处，然后回答第5 题。

       What would you do if a stranger gave you some medicine and he said it would keep you slim or

help you do well in exams? Would you take it?

       Many middle school students have learned to keep themselves safe by saying "no".  1  .Drugs are

dangerous to your health!

       Because most of teens don't know much about drugs, they might want to try them. Liu, 16, was a

good student before trying drugs.  2   .He decided to have a try. After taking drugs only once, he found

it very hard to stop. Liu began to spend all his time and money on drugs. Soon, he stopped going to

school and started stealing (偷).  3   .   

       In China, taking drugs is becoming a big problem for teens. According to a survey, about one million

people in China are using illegal drugs now, and about 74% of them are young people.   4  

       Drugs are dangerous. Never try them, even if you're curious! It is the most important for you to keep safe and healthy.

A. In the end, he was put in prison.

B. In fact, what those strangers want to give them are drugs (毒品).

C. What's worse, there are about 10,000 drug users under 16 now.

D. One day, some old friends told him it would be fun.

5. According to a survey, about        young people in China are using illegal drugs now.

A. 1,000,000          

B. 100,000

C. 10,000              

D. 740,000

下列属于生物多样性的间接使用价值的是（　　）

A．森林具有调节气候、涵养水源等生态功能

B．许多动植物具有药用价值

C．海洋生物为工业生产提供原料

D．森林为人类提供木材

患者，男性，69岁。因持续性胸痛伴出汗2小时，口含硝酸甘油无效而来院急诊。有高血压病、糖尿病8年，吸烟史33年。查体：呼吸22次／分，血压160/90mmHg，双下肺可闻及湿啰音，心率108次／分，心律齐，第一心音减弱，ECG示I、aVL、V2～V5导联ST段抬高0.2～0.5mV。

患者病变涉及的冠状动脉最可能是（）

A.左冠状动脉前降支

B.左冠状动脉间隔支

C.左主干病变

D.左冠状动脉回旋支

E.右冠状动脉

SQL中可使用的通配符有______。

A．*(星号)

B．%(百分号)

C．(下划线)

D．B和C

人民要依法直接行使民主权利、管理基层公共事务和公益事业，实行自我管理、自我服务、自我教育、自我监督。为此必须健全：

A．人民代表大会制度

B．基层群众自治制度

C． * * 党领导的多党合作和政治协商制度

D．民族区域自治制度