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【单选题】
不属于“交会法”确定站立点的是（）。A.
90度法
B.
指北针法
C.
截线法
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
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【简答题】阅读理解。 At the shopping mall, you probably think about spending, not saving. Think about all the lights that keep the mall bright. Think about all the water faucets (水龙头) in the toilet. Think about all ...
【简答题】铸坯皮下气泡产生的原因是什么？
【单选题】Air Pollution When people think about air pollution, they usually think about smog, acid rain, CFC's, and other forms of outdoor air pollution. But did you know that air pollution also can exist insid...
A.
Y
B.
N
C.
NG
【单选题】Who do you _____is the funniest actor?
A.
think
B.
think over
C.
think of
D.
think about
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