下列材料中，最适合做滤毒罐中的滤毒剂的是（ ） A．棉花 B．布条 C．活性炭

一个犹太人的孩子问母亲：“如果家中着了火，我首先该抢救什么呢？”母亲微笑着回答：“最重要的是你要把自己生命抢救出来，其他的一切都不是重要的。”生命只有一次，失去了就不可能挽回。犹太人对待火灾的态度是很耐人寻味的。这段故事给我们的启示是[ ]

A．在发生危险时，我们应学会保护自己的生命安全

B．在火灾中抢救其他的一切物品都是不必要的行为

C．犹太人对孩子的教育观点是极其错误的

D．在发生危险时，我们应该等待大人来施救

Education is not an end, but a means to an end. In other words, we do not educate children only for the purpose of educating them. Our purpose is to fit them for life.

In some modem countries it has for some time been fashionable to think that by free education for all — one can solve all the problems of society and build a perfect nation. But we can already see that free education for all is not enough; we find in such countries a far larger number of people with university degree; they refuse to do what they think “low” work; and, in fact, work with hands is thought to be dirty and shameful in such countries. But we have only to think a moment to understand that the work of a completely uneducated farmer is far more important than that of a professor; we can live without education, but we die if we have no food. If no one cleaned our streets and took the rubbish away from our houses, we should get terrible diseases in our towns…

In fact, when we say that all of us must be educated to fit us for life, it means that we must be educated in such a way that, firstly, each of us can do whatever work suited to his brains and ability and, secondly, that we can realize that all jobs are necessary to society, and that is very bad to be ashamed of one’s work. Only such a type of education can be considered valuable to society.

小题1:The writer of the passage thinks that _______.

A．education can settle most of the world’s problems

B．free education for all probably leads to a perfect world

C．free education won’t help to solve problems

D．all the social problems can’t be solved by education小题2:The writer wants to prove that _______.

A．our society needs all kinds of jobs

B．our society needs free education for all

C．a farmer is more important than a professor

D．work with hands is the most important小题3:The purpose of education is _______.

A．to choose officials for the country

B．to prepare children mainly for their future work

C．to let everyone receive education fit for him

D．to build a perfect world小题4:The passage tells us about _______ of the education.

A．the means

B．the system

C．the value

D．the type

计算题：已知配重管在空气中的重量为5650kg，配重管在海水中的浮力为2588kg，钢管长度为12.2m，钢管单位重量127kg/m，配重管管端预留长度为300mm。请计算配重管的负浮力？

天花粉的入药部位是（）

A.根

B.根茎

C.块茎

D.花粉

E.果实

在道路上停车时，应选择允许停放的路段，按顺行方向靠道路右侧停放。