【单选题】【消耗次数：1】
.安全电压决定于（ ）。
①
A、工作环境和设备额定电压
②
B、人体允许电流和人体电阻
③
C、性别和工作环境
参考答案：
复制
纠错
相关题目
【简答题】
同因素理论关注点是工作环境和学习环境的[填空1]。
随机题目
【单选题】
The Nazi regime is devoid ______ all theme and principle except appetite and racial domination.
①
of
②
away
③
from
④
for
【单选题】
I see the Russian soldiers standing on the ________ of their native land, guarding the fields.
①
threshold
②
frontiers
③
entrance
④
gate
【单选题】
In June 1941 Hitler suddenly launched an attack ______ Russia.
①
for
②
to
③
on
④
against
【单选题】
When I awoke on the morning of Sunday, the news was brought ______ me ______Hitler’s invasion of Russia.
①
for…of
②
to…on
③
to… of
④
for… on
【单选题】
Hitler was wrong and we should ______ to help Russia.
①
go out all@go all out
②
make out all
③
make all out
【单选题】
This is no time to moralize ______ the follies of countries which have allowed themselves to be struck down one by one.
①
to
②
on
③
by
④
in
【单选题】
Hitler was however wrong and we should ______ to help Russia.
①
make all out
②
make out all
③
go all out
④
go out all
【单选题】
In June 1941 Hitler suddenly ______ an attack on Russia.
①
launched
②
exerted
③
developed
④
created