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搜题
【单选题】
电动机正转时接线相序为UVW,下列哪项不能实现反转。A.
UWV
B.
VUW
C.
WVU
D.
VWU
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
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【简答题】what is earth day ?
【简答题】内燃机技术的奠基人是德国工程师：（）。
【简答题】是指传感器对随时间变化的输入量的响应特性
【多选题】Listen again and choose what people do to celebrate Earth Day.
A.
Not using electricity for the whole day.
B.
Create a zero-carbon day.
C.
Plant a tree in the neighbourhood.
D.
Stay at home and sleep all day.
E.
Spend every day as Earth Day.
【简答题】What is Earth Day about? ____
【多选题】Listen to the dialogue and find out what people do to celebrate Earth Day.
A.
Not using electricity for the whole day.
B.
Create a zero-carbon day.
C.
Plant a tree in the neighbourhood.
D.
Spend every day as Earth Day.
【简答题】内燃机技术的奠基人是德国工程师 。
【简答题】内燃机的奠基人是德国工程师 。
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