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Evaluation Warning: The document was created with Spire.Doc for .NET.赢长椅釉党俱声丛炙斩虏首洗输槐绽...
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第二章 2.4 第29课时一、选择题1.若向量a=(1,1),b=(2,5),c=(3,x),满足条件(8a-b)·c=30,则x=( )A.6 B.5C.4 ...
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