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[主观题]
计算:20082﹣2007×2009.计算:2008 2 ﹣2007×2009.
提问人:网友ljz64864
发布时间:2022-01-07
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2008 2 ﹣2007×2009 =2008 2 ﹣(2008﹣1)(2008+1) =2008 2 ﹣(2008 2 ﹣1 2 ) =2008 2 ﹣2008 2 +1 =1.
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B.,,
C.,?
D.?,
B.on
C.away
D.into
B.常突然发生而迫使病人立即停止活动
C.疼痛历时1~5分钟
D.疼痛部位在左心前区
E.疼痛放射至左肩及左上肢内侧
A.phone
B.voice mail
C.fax
D.e-mail
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