题目内容

The underlined word "it" in the second paragraph refers to the idea that Computer own______
[A]helps to set up more computer clubs
[ B ] brings people to leam to use computers
[ C] brings more experts to work together
[D]helps to sell computers to the public

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[A] reduce
[B] reform
[C] remove
[D] retain

Marry Brown

[A]unhappy
[B]sure
[C]crazy
[D]careless

动物性别决定的理论有哪些?性别决定的实质是什么?

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