材料运杂费是指材料自来源地运至工地仓库或指定堆放地点所发生的全部费用。()
参考答案:对
Last year, Li Hua, a college student, _____ to work for the Olympic Games. [ ]
A. is chossing
B. is chosen
C. was choosing
D. was chosen
钢丝绳端部用绳卡固定连接时,绳卡压板应在钢丝绳主要受力的一边,且绳卡不得正反交叉设置;绳卡间距不应小于钢丝绳直径的()倍;绳卡数量应符合规定