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【判断题】
自动变速器油的更换周期是 2年或者4万-6万公里或者参考使用说明书。 最好的更换方法是动态换油,这样能保障换油率达到90%以上,保证良好的换油效果。A.
正确
B.
错误
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举一反三
【简答题】d___________: adj. (of a place) empty and without people, you feel sad or frightened
【简答题】( )(adj.) you feel slightly angry
【简答题】瑞利散射将光信号向四面八方散射，我们把其中沿光纤原链路返回OTDR的散射光称为（）。
【单选题】What's the main idea of the third paragraph?
A.
Gene technology can help people to give birth to a baby.
B.
Gene technology can be used to clone human babies.
C.
How gene technology can be used to treat hereditary diseases.
D.
Gene technology can solve all the problems of the English imperial family.
【简答题】车辆技术改装 ——
【单选题】From the health point of view we are living in a marvelous age. We are immunized from birth against many of the most dangerous diseases. A large number of once fatal illnesses can now be cured by mode...
A.
traffic accidents are mainly caused by motorists
B.
thousands of people the world over are killed each year
C.
the laws of some countries about driving arc too lax
D.
only stricter traffic laws can prevent accidents
【简答题】adj. lacking friendly human feeling or atmosphere; you feel unimportant im_______
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