皮皮学，免费搜题
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搜题
【多选题】
电力电子技术是建立在那三门学科基础上的一门边缘学科?A.
电力学
B.
电子学
C.
控制学
D.
机械学
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】Mr. Black said, 'I have walked a long way this week.' Mr. Black said that ______ a long way ______. [ ]
A.
I had walked; last week.
B.
he had walked; that week.
C.
I walked; last week
D.
he has walked; last week.
【简答题】阅读理解 This is a photo of Mr. Black's family. The man with glasses(眼镜) is Mr. Black, the father. The woman is the mother. They have a son and a daughter. The son is behind Mr. Black. His name is Jack. H...
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