皮皮学，免费搜题
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搜题
【单选题】
职业是指人们为了()而从事相对稳定的、有收入的、专门类别的社会劳动。A.
个人发展
B.
谋生和发展
C.
生活来源
D.
兴趣
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】三相电源与三相负载连接,中线的作用?
【单选题】Don't go to open the door at once when the door bell _____.You should ask who it is at first. [ ]
A.
run off
B.
set off
C.
go off
D.
put off
【简答题】Started in 1636, Harvard University is the oldest of all the colleges and universities in the United States. Yale, Princeton, and Columbia were opened soon after Harvard. In the early years, these sch...
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