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【单选题】
人触电后能自主摆脱电源的最大电流称为A.
短路电流
B.
工作电流
C.
摆脱电流
D.
过负荷电流
拍照语音搜题，微信中搜索"皮皮学"使用
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【单选题】Scarcely had they settled themselves in their seats in the theatre ______ the curtain went up.
A.
then
B.
before
C.
when
D.
then
【单选题】Scarcely had we settled ourselves in our seats in the theatre ______ the curtain went up.
A.
than
B.
when
C.
as
D.
after
【简答题】完形填空。 Mama's voice floated through the apartment as she sang a Mexican folk song that I had heard all my life. 'Hola,' she greeted me when she came out of the bedroom. 'Please speak to me in 1 ,' I in...
【简答题】完形填空。 Every Saturday night Mama would sit down by the table and count out the money Papa had brought home. Mama would carefully divide big groups for the housing, and food, and one or two coins for Ne...
【单选题】Mama had the curtains drawn to keep it cool so it was _______ dark in there.
A.
in total
B.
kind of
C.
in the form of
D.
but then
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