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【单选题】
用治尿赤心烦，口舌生疮最宜选择的药物是（）A.
茵陈
B.
泽泻
C.
黄连
D.
木通
E.
滑石
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举一反三
【简答题】生产机械中所用的控制电器多属低压电器,低压电器是指工作在直流 V、交流 V以下的电器。
【简答题】所低压电器是指工作在交流电压 ( ) 、直流电压 ( ) 以下的各种电器。生产机械上大多用低压电器。
【单选题】Jason and Lucy advised me____too much;otherwise I would have been drunk.
A.
not drinking
B.
not to drink
C.
to drink
D.
drinking
【单选题】Eying Lucy ______, Jason could hardly believe that his long lost friend was standing before him.
A.
from head to feet
B.
from head to toe
C.
from hair to feet
D.
from hair to toe
【单选题】Jason has ______ finished the homework, but Lucy hasn’t _____.
A.
already; already
B.
already; yet
C.
yet; already
D.
yet; yet
【简答题】低压电器的电压范围是多少?
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