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【单选题】
反复性流产最常见的原因是A.
孕卵发育异常
B.
功能不足
C.
甲状腺功能不全
D.
染色体异常
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举一反三
【单选题】What is the difference between Western and Chinese customs at funerals?
A.
People in China make no noise at all at funerals.
B.
Chinese tend to show little feelings at funerals.
C.
Westerns tend to walk very close to the bereaved.
D.
In Western countries, a solemn quiet always prevails.
【简答题】机床的加工精度和使用寿命在很大程度上取决于机床导轨的质量,目前数控机床使用较多的是____导轨和____导轨,也有采用____导轨的。
【简答题】At funerals, Chinese pay respect to the dead and express their sorrow by wearing white and writing elegiac couplets in_____________.
【判断题】At funerals,Chinese pay respect to the dead and express their sorrow by wearing white.
A.
正确
B.
错误
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