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搜题
【单选题】
间接带电作业时,作业人员(包括所持的非绝缘工具)与电压等级为220kv带电部分之间的距离,不得小于( )mm。A.
700
B.
1000
C.
1800
D.
2200
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举一反三
【单选题】He grabbed me ______ and pulled me onto the bus. a. a. a arm b. an arm c. the arm d. by the arm
A.
a arm
B.
an arm
C.
the arm
D.
by the arm
【单选题】The boy led the old man ____ and hleped himget on the bus. A.by his arm B.by the arm C.with his arm D.with the arm
A.
by his arm
B.
by the arm
C.
with his arm
D.
with the arm
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