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听力原文:M: What are you looking for?
W: We're studying the basic structure of molecules.
M: Just any molecules? There are quite a few of them!
W: Yes, far too many. We're only working with certain molecules that contain carbon and hydrogen.
M: What do you expect to learn from that?
W: We're trying to see the kinds of carbon molecules in which we can use silicon as a substitute.
M: What difference would that make?
W: Silicon has a lot of the same properties as carbon, hut it's much more common than carbon.
M: Oh, I see.
What is the woman studying?

A. The basic structure of atoms.
B. The basic structure of molecules.
C. The basic structure of neutron.

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Any discussion of this topic is (7)_____ to question the aims of education. Stuffing children's heads full of knowledge is (8)_____ being foremost among them. One of the chief aims of education is to (9)_____ future citizens with all they require to (10)_____ their place in adult society. Now adult society is made up of men and women, so how can a segregated school (11)_____ offer the right kind of preparation for it? Anyone entering adult society after years of segregation can only be in for a (12)_____.
A co-educational school offers children nothing (13)_____ a true (14)_____ of society in miniature. Boys and girls are given the (15)_____ to get to know each other, to learn to live together from their earliest years. They are put in a position where they can compare them selves with each other (16)_____ academic ability, athletic achievement and many of the extracurricular activities which are (17)_____ of school life. What a (18)_____ advantage it is (to give just an example) to be able to put on a school play in which the male parts will be taken by boys and the female parts by girls! What (19)_____ co-education makes of the argument that boys are cleverer than girls or vice-versa. When segregated, boys and girls are made to feel that they are a race apart. (20)_____ between the sexes is fostered. In a co-educational school, everything falls into its proper place.

A. recruit
B. react
C. reckon
D. retain

One possible change in the future is that people will ______.

A. spend less on entertainment
B. spend less eating out
C. spend more on books
D. spend more on their health

对于企业未使用、不需用固定资产,不应计提折旧。()

A. 正确
B. 错误

我国股票市场上目前绝大部分是普通股票。 ()

A. 正确
B. 错误

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