A.e為0.51m,e<0.75ρ
B.e為0.51m,0.75ρ<ρ
C.e為0.68m,e<0.75ρ
D.e為0.68m,0.75ρ<ρ
正確答案:A
登錄查看解析 進(jìn)入題庫(kù)練習(xí)
答案解析:無(wú)
考試簡(jiǎn)介報(bào)名條件考試科目考試時(shí)間報(bào)名時(shí)間認(rèn)定程序注冊(cè)指南成績(jī)管理證書(shū)領(lǐng)取專業(yè)對(duì)照教材大綱網(wǎng)校課程