一个铝锅的质量是500克,一个铝盒的质量是200克,它们的质量之比是______

题型:填空题

问题:

一个铝锅的质量是500克,一个铝盒的质量是200克,它们的质量之比是______;密度之比是______.

考点:密度公式的应用密度及其特性
题型:填空题

据对话内容,在空白处填写适当的话语.(话语可能是一个句子,也可能是一个短语或一个词),使对话完整。

A:  Hi, Sally.  You look very sad.  What's the problem?

B:  I failed my monthly exam. You know the entrance exam is coming. I'm really worried.

1.______________?

A:  I know you are good at schoolwork and you always get good grades in the exams.

What happened this time?

B:  I don't know.  I just feel 2._____________these days.

A:  Have you 3._________________your parents about your problems?

B:  No.  I don't want them to worry too much about me.

A:  Did you go to your teacher to ask for help?

B:  Yes.  She said l was too tense and I needed to relax myself.

A:  4.__________________ listen to some soft music? Maybe it will help you.

B:  I've tried, but it doesn't work.

A:  Maybe we could go for a walk together.  I can tell you some funny jokes, and then

 you will feel better.

B:  5._________________________.  Thanks for your help.

A:  You are welcome.

题型:填空题

不属于钝化酶的是()

A.乙酰转移酶

B.核苷转移酶

C.磷酸转移酶

D.红霉素酶

E.CTX-M型酶

题型:填空题

Why are you so anxious? It isn't your problem _____. [ ]

A. on purpose

B. in all

C. on time

D. after all

题型:填空题

接口间隙填料时,填料凹入承口边缘不得大于( )mm。

A.5

B.6

C.7

D.8

题型:填空题

《财务管理基本规范》适用范围包括省联社、省内各级农村信用合作联社和()。

A、村镇银行

B、省内农商银行

C、省外农信系统在福建省设立的分支机构

D、省外农信联社

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