皮皮学，免费搜题
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【单选题】
下列哪位科学家提出了原子论（ ）A.
道尔顿
B.
萨克
C.
波义耳
D.
伽德罗
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The high voltage section includes arc extinguishing chamber, ( ) , isolating switch and other parts.
A.
air reservoir
B.
nonlinear resistance
C.
main valve
D.
start valve
【单选题】Before discharge of cargo tank ballast is undertaken，______．
A.
the deck isolating valve is open
B.
flue gas isolating valve
C.
blower suction valve
D.
blower discharge valve
【简答题】A．protecting B．accusing C．depriving D．isolating
【简答题】[A] isolating [B] separating [C] alienating [D] detaching
【判断题】The isolating switch itself has no arc extinguishing device and cannot switch off the high current.
A.
正确
B.
错误
【判断题】When switching off,the isolating switch opens to disconnect the circuit first.
A.
正确
B.
错误
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