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简述操作系统的基本功能。
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【单选题】In the first paragraph,the writer mentioned Michael Phelps ________.
A.
to introduce a doctor of TCM
B.
to give an example of using cupping
C.
to introduce the Rio Olympics
D.
to give an example of a good swimmer
【简答题】阅读理解。 Michael Phelps and his U.S. teammates crowned the greatest single Olympic performance on 17th August, 2008 with a win in the 4?100 - meter medley relay. The victory gave Phelps his eighth gold m...
【简答题】The native Canadians lived in _______ with nature, for they respected nature as a provider of life A) coordination         B)   acquaintance       C) contact          D)   harmony
【单选题】文化遗产按中国方式分类不包括下列哪一项?()
A.
物质文化遗产
B.
非物质文化遗产
C.
博物馆藏品
D.
无形文化遗产
【单选题】听力原文: Native Americans lived in America before Columbus arrived. They had songs for many occasions and they used drums and other musical instruments. Dancing and music was an important part of their l...
A.
musical instruments
B.
religious prays
C.
festival banners
D.
camp tents
【简答题】阅读理解。 Michael Phelps and his U.S. teammates crowned the greatest single Olympic performance Sunday morning with a win in the 4×100-meter medley relay. The victory gave Phelps his eighth gold medal of ...
【判断题】Michael Phelps won 7 gold metals in the Olympics in 2008
A.
正确
B.
错误
【判断题】Scabby Bill is one of the invisible black native who lived in the settlement.
A.
正确
B.
错误
【单选题】逗号表达式(a=3*5,a*4),则a+15的值为,a的值为
A.
15,60
B.
60,30
C.
30,15
D.
不确定,90
【单选题】在三相正弦交流电路中,下列四种结论中,正确的答案应是( )
A.
三相负载作星形联接时,必定有中线
B.
三相负载作三角形联接时,其线电流不一定是相电流的3倍
C.
三相三线制星形联接时,电源线电压必定等于负载相电压的3倍
D.
三相对称电路的总功率,P=3U p I p cosφ
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