皮皮学，免费搜题
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【单选题】
●关于Ping命令的使用，下面正确的有 (25) 。 (25)A.
ping te.oh.us
C.
ping-s 202.38.75.14 C．ping boozhang@sdB.aC．cm
D.
ping http：／／www.ustC.edu.cn
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】Generally, you should avoid business over a meal until your host gives a signal
A.
talk about
B.
talking about
C.
to talk about
D.
talked about
【单选题】Generally speaking, you should expect to find low atmospheric pressure prevailing in the earth’s ______.
A.
equatorial area
B.
polar regions
C.
mid-latitudes
D.
All of the above
【单选题】Generally,you should avoid ____business over a meal until your gives a signal.
A.
talk about
B.
talking about
C.
to talk about
D.
talked about
【单选题】Generally,you should avoid ____business over a meal until your manager gives a signal.
A.
talk about
B.
talking about
C.
to talk about
D.
talked about
【单选题】Generally speaking, you should arrive at the airport with plenty time _
A.
spare
B.
spared
C.
to spare
D.
sparing
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