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【简答题】
我国规定( )( )( )三个电压等级为安全电压级别。
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皮皮学刷刷变学霸
举一反三
【简答题】阅读下列程序并写出运行结果。
【单选题】. When talking about his road to success in an interview, he owed his success ______ his mother.
A.
for
B.
in
C.
on
D.
to
【单选题】The winner of the Grand Slams said that he had owed his success to many people,____ his parents . [ ]
A.
after all
B.
by chance
C.
on purpose
D.
in particular
【简答题】阅读下列程序并写出运行结果。
【简答题】阅读下列程序并写出运行结果。
【简答题】电池片焊接中电烙铁的温度应控制在 ________________ 。
【简答题】（1+0.12+0.23）×（0.12+0.23+0.34）-（1+0.12+0.23+0.34）×（0.12+0.23）=______．