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【单选题】
下列（）两种是在电气操作中使用的基本安全用具A.
绝缘手套、验电器
B.
绝缘靴、绝缘站台
C.
验电器、绝缘夹钳
D.
绝缘手套、临时遮拦
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皮皮学刷刷变学霸
举一反三
【简答题】Dogowners have been required to keep their animals under ______.A. concepts B. control C. false D. disorder
【单选题】House owners keep their gardens in a neat and orderly state according to the regulations.
A.
may
B.
would
C.
can
D.
shall
【单选题】As Senior 3 students, it is important to________a good state of mind.A．keep upB．stick withC．atten
A.
27．As Senior 3 students, it is important to________a good state of mind. A．keep up
B.
stick with
C.
attend to
D.
tie up
【单选题】As senior three students, it is important to ______ a good state of mind.
A.
keep up
B.
carry out
C.
get in
D.
take off
【单选题】CMMs owners believe that a calibration is ________ to keep machines running
A.
excessive
B.
sufficient
C.
deficient
D.
easy
【单选题】Dogs owners have been required to keep their animals under ______.
A.
control
B.
mark
C.
contact
D.
match
【单选题】Senior citizens are advised to go in for some creative activities to keep themselves mentally young.
A.
search for
B.
invest in
C.
engage in
D.
work out
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