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【简答题】
变频器安装要求其正上方和正下方要避免可能阻挡进风、出风的大部件,四周距控制柜顶部、底部、隔板或其他部件的距离 。
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皮皮学刷刷变学霸
举一反三
【单选题】The nastiest job Quinones had was ________.
A.
digging ditches
B.
working in the fields
C.
being a resident
D.
working in a rail yard
【单选题】The nastiest job Quinones had was ______________.
A.
working in the fields
B.
digging ditches
C.
working in a rail yard
D.
being a resident
【判断题】讠<1时为增速降扭,称为超速档< /div>
A.
正确
B.
错误
【单选题】He decided to ____ the job after he quarreled with the manager. [ ]
A.
stop
B.
block
C.
loosen
D.
quit
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