硅是一种非金属，但却具备金属的部分性质。

Listening test is one of the important parts of the English exam. Here are some tips for you .

Before you start to listen ,you need to relax. Don't be nervous. And try to read the questions .These questions usually help you understand the dialogue or the passage.

Then listen carefully to the first sentence. It usually tells you the main idea of the passage. When you 're listening ,try to do some thinking and take some notes ,suck as:

• What happened?

• When ,where, and how?

• What does the speaker want to tell us?

In this way, you may understand the passage better.

Please rememeber not to think about one or two words for a long time. When you hear some words you don't know, don't spend too much time on them. Very often, you'll find out what they mean later when you go on with the listening.

小题1:This passage mainly talks about          .

A. tips on listening    B. tips on speaking      C. tips on reading

小题2:It's better for you to keep           when you start to have a listening test.

A. excited           B relaxed            C. nervous

小题3:We should listen to the first sentence carefully, because it usually tells us        

A. the answer to the question

B. where to write the answers  

C. the main idea of the passage

小题4:When you're listening, it's important for you to          .

A. remember every word        

B. take some notes 

C. Think about one word for a long time

小题5:The           usually help(s) us understand the passage better.

A. questions            B. first sentence         C. notes

男性，16岁，反复肉眼血尿5月，查体：血压165/100mmHg，肾功能正常，血补体正常范围， 24小时尿蛋白定量0.86g，尿红细胞(++)，相差显微镜检查95%以上是异型红细胞，最可能的诊断是

A．急性肾小球肾炎

B．紫癜性肾炎

C．慢性肾小球肾炎

D．隐匿性肾炎

商业银行在实施内部市场风险管理时，市场风险经济资本为( )。

A．乘数因子×VaR

B．(附加因子+最低乘数因子)×VaR

C．(附加因子+最低乘数因子)/VaR

D．VaR/(附加因子+最低乘数因子)

下列局麻药中，属酯类局麻药的是（）

A.利多卡因

B.丁卡因

C.布比卡因

D.依替卡因

E.罗哌卡因

下列关于RNA的叙述，错误的是（）

A.RNA的基本单位是核糖核苷酸

B.RNA是一种遗传物质

C.RNA参与构成核糖体

D.RNA参与构成细胞膜