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【判断题】
硅原子和锗原子最外层都有4个价电子A.
正确
B.
错误
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举一反三
【单选题】----_____he dropped out of school? ----His family has run into financial difficulties.
A.
Why was it that
B.
Why was that
C.
Why was that it
D.
Why was it
【单选题】Why was Mr White kind and agreeable that morning?
A.
The chairman of the company is coming to work in the office.
B.
The chairman of the office is coming to visit the office.
C.
The chairman of the office will ask Mr White to leave the office.
【简答题】B: Why was that ? A: More boring , I suppose. I don't know. You know , t he task was that (1) . B: Was it that much more boring ? A: Oh yes. It was in th e, er, sorting center and all I did was s or t...
【单选题】冷却系的作用是保证发动机在正常工作温度下工作,多数汽车发动机用强制水冷,其正常水温为_____。
A.
发动机与变速器之间
B.
变速器与后驱动轴之间
C.
带轮与变速器之间
D.
分动器与变速器之间
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