发动机运转时突然熄火，当转动曲轴时，电流表指向放电，并停在0～5A之间不摆动，也不能

某人的身高是2.25米，在照片上的身高是的5厘米，这张照片的比例尺是______．

第二节 补全对话（共5小题；每小题2分，满分10分）

根据对话内容，从对话后的选项中选出能填入空白处的最佳选项，并在答题卡上将该项涂黑。选项中有两项为多余选项。

A: Hello, Julie! Sorry, I'm late. The traffic was terrible.

B: That's OK! I just arrived. Be careful! The steps are wet.   61 

A: Thanks. Let's go in－it's raining.

B:  62  Is it a special holiday?

A: No, but it's a new restaurant, so the flowers are here to give congratulations to the owner and for good luck.

B: What do you mean when you say "good luck"? Do you mean good luck to make money or good luck for other things?

A:  63  Now please come over here.

B: Do you want me to sit down here? Oh, come and look at the fish.

A:  64 

B: How much is the Mandarin fish? It looks very fancy.

A:  65  I think it's about eighty yuan.

B: What does that mean? It looks as if you are pointing a gun at the waitress.

A: We use our fingers to show numbers. Don't you?

B: Yes, but not like that. We use our fingers for numbers one to nine, but nothing bigger. We wouldn't use our fingers to say "eighty".

A．It's a little expensive, but it's excellent   

B．B．It's for good business in the restaurant.

C．Don't slip.                                         

D．Oh, look at the beautiful decorations anti flowers.

E．Sony, I'd rather not.                                  

F．You are always too careless.

G．It is really beautiful.

为单一客户办理定向资产管理业务的特点之一是：必须在单一客户的专用证券账户中经营运作。( )

以下关于空气中TVOC的采样操作正确的是（）。

A.调节流量1.0L/min，采样10min；

B.调节流量0.5L/min，采样20min；

C.调节流量1.0L/min，采样20min；

D.调节流量0.5L/min，采样10min。

协同致癌作用机理包括（）

A.抑制DNA修复

B.选择性增强DNA受损细胞的增殖

C.活化作用酶系统活力发生改变

D.上述AB正确

E.上述AC正确