题型:问答题 简答题 – Where did she go on vacation?– .A.She stays at homeB.She visits her uncleC.She went to New YorkD.She wants to go to Hainan 查看答案
题型:问答题 简答题 根据《建筑施工扣件式钢管脚手架安全技术规范》(JGJ130—2001),脚手板进行铺设时,自顶层作业层的脚手板往下计,宜每隔()m满铺一层脚手板。A.10 B.12 C.15 D.20 查看答案