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最佳答案:Room 101 Unit 3 Building 5,ZhuanChiXinCun,JuChao Suburb,ChaoWu City,Anhui Provin
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最佳答案:Chaohu city is in the middle of Anhui province.It is next to Yangzi River and Ch
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最佳答案:→ →OZ与OZ′关于x轴对称,点Z(x,y)→∴OZ =(x,y),→OZ′ =(x,-y)∵j=(0,1),→ →∴不等式OZ平方+j•ZZ/≤0可以整理为