2.三個(gè)質(zhì)點(diǎn)A、B、C均由N點(diǎn)沿不同路徑運(yùn)動(dòng)至M點(diǎn),運(yùn)動(dòng)軌跡如圖所示,三個(gè)質(zhì)點(diǎn)同時(shí)從N點(diǎn)出發(fā),同時(shí)到達(dá)M點(diǎn),下列說(shuō)法正確的是( ?。?/div>
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發(fā)布:2024/9/19 13:0:10組卷:8引用:1難度:0.9
發(fā)布:2024/9/19 13:0:10組卷:16引用:2難度:0.8