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甲容器有纯酒精11升，乙容器中有水15升。第一次将甲容器中一部分纯酒精倒入乙容器，使酒精和水混合。第二次将乙容器中的一部分混合液倒入甲容器中。这样甲容器中的纯酒精含量为62.5%，乙容器中纯酒精含量是25%。那么第二次从乙容器倒入甲容器的混合液是多少升？()

A.6

B.5

C.7

D.8

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更多“甲容器有纯酒精11升，乙容器中有水15升。第一次将甲容器中一部分纯酒精倒入乙容器，使酒精和水混合。”相关的问题

第1题

Before you mail this letter, you should check again whether you have（）it or not.

A．sunk

B．sighed

C．sought

D．sealed

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第2题

Don't forget to ______ your letter before you mail it.A．fastenB．shutC．sealD．stick

Don't forget to ______ your letter before you mail it.

A．fasten

B．shut

C．seal

D．stick

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第3题

You should check the air in the type ______ you start on a long automobile trip.

A．as

B．before

C．so

D．so that

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第4题

Before replacing a piston you should check that all rings are ___.A.freeB.fastenedC.broken

Before replacing a piston you should check that all rings are ___.

A.free

B.fastened

C.broken

D.stuck

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第5题

Before （write) ________ an application letter, you should be aware what kind of people the

Before (write) ________ an application letter, you should be aware what kind of people the employer needs.

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第6题

You should （) your homework before you handle it in.

A．test

B．check

C．assure

D．ensure

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第7题

4. What should you do if you are typing an essay？ A) Take regular breaks from typing. B) Check your spelling. C) You should always save a copy. D) Give it to a friend to read before you had it in.

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第8题

－If you like I can mail this letter for you？－ ________ .A That’s very kind of youB You

-If you like I can mail this letter for you？

- ________ .

A That’s very kind of you

B You are so kind

C Please give me a hand

D You are great

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