英语问 核科学1.every morning my son fills a bottle__boiled but cool water and then goes to schoola.in b.into c.with d.fron2.don't make any noise in the library,__?a,shall we b.will you c.do you d.can you 3you can't send your son to school until

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英语问核科学1.everymorningmysonfillsabottle__boiledbutcoolwaterandthengoestoschoola.inb.intoc.withd.fron2.

英语问 核科学1.every morning my son fills a bottle__boiled but cool water and then goes to schoola.in b.into c.with d.fron2.don't make any noise in the library,__?a,shall we b.will you c.do you d.can you 3you can't send your son to school until
英语问 核科学
1.every morning my son fills a bottle__boiled but cool water and then goes to school
a.in b.into c.with d.fron
2.don't make any noise in the library,__?
a,shall we b.will you c.do you d.can you
3you can't send your son to school until he is __
a.enough old b.old enough
科学的
要得到含杂质百分之二的生铁1000T,需要含杂质百分之二十的赤铁矿多少T?答案是1750 但是不知道怎么算 ,

英语问 核科学1.every morning my son fills a bottle__boiled but cool water and then goes to schoola.in b.into c.with d.fron2.don't make any noise in the library,__?a,shall we b.will you c.do you d.can you 3you can't send your son to school until
英语的第一个貌似是B
第二个应该是A
第三个应该是B

1. C
这里考的是固定搭配：fill sth1 with sth2。意思是把sth2装进sth1中。
这句话的意思是：每天早上我儿子都会装一瓶冷开水然后去上学。
2. B
省去主语的祈使句的反意疑问句，疑问部分用will you/won’t you。
3. B
当enough去修饰一个形容词时，位置一般是后置的。
化学题：

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1. C
这里考的是固定搭配：fill sth1 with sth2。意思是把sth2装进sth1中。
这句话的意思是：每天早上我儿子都会装一瓶冷开水然后去上学。
2. B
省去主语的祈使句的反意疑问句，疑问部分用will you/won’t you。
3. B
当enough去修饰一个形容词时，位置一般是后置的。
化学题：
首先你要知道赤铁矿的主要成分是三氧化二铁（原子量是160），生铁的主要成分是铁。
设需要的含杂质的赤铁矿是X吨，根据铁元素守恒的原则可得：
1000*（1-2%）=X*（1-20%）*（112/160）
解方程的 X=1750 吨

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