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【判断题】
润滑系的功用主要是以减少零件的摩擦与磨损。A.
正确
B.
错误
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【简答题】分析化学是化学测量和表征的科学,按照分析的目的来分,分析化学可以分为 、 、和结构分析等 。
【单选题】Many early robots resulting ________ mechanical and electrical system, became central to mechatronics.
A.
in
B.
of
C.
from
【简答题】水准测量的误差包括【】、【】、【】_.
【单选题】What does Nancy think of her new neighbors? 查看材料
A.
They are not polite.
B.
They seem nice.
C.
They are crazy.
D.
They don't talk much.
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