皮皮学，免费搜题
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【多选题】
常用控制电器有：A.
接触器
B.
继电器
C.
电磁铁
D.
刀开关
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】My son set out _____ questions when I set about ______lessons.
A.
asking; preparing
B.
to ask; to prepare
C.
asking; to prepare
D.
to ask; preparing
【简答题】When you are curious about something, and want to know more about it, you can use the way of asking questions. Asking questio ns i s the first step to make discoveries and find interesting answers. Th...
【单选题】The teacher wants the children to feel ________about asking questions when they don't understand. [ ]
A.
certain
B.
concerned
C.
sure
D.
confident
【简答题】When you are curious about something and want to know more about it, you can use the way of asking questions. Asking questions is the first step to make discoveries and find interesting answers. The f...
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