安装轨枕扣件时,注入套管中防锈油约为()。
A、10~15克
B、15~20克
C、20~25克
D、25~30克
参考答案:A
8、When and where to go for the on-salary holiday ______ yet.
A.are not decided
B.have not been decided
C.is not being decided
D.has not been decided
VBA中采用Hungarian符号法命名变量,代表子报表的字首码是()
A.sub
B.Rpt
C.Fmt
D.txt