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下列哪组单位是国际单位制中的基本单位?( ) A.千克、秒、
下列哪组单位是国际单位制中的基本单位?( ) A.千克、秒、
下列哪组单位是国际单位制中的基本单位?( )
A.千克、秒、牛顿 B.千克、米、秒 C.克、千米、秒 D.牛顿、克、米
答案
B
解析:略
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