在15的因数中,最大的因数是[ ]
A.1
B.5
C.15
答案:C
My uncle, the boss of a shoe factory _____ me for a part-time shop assistant of the department store. [ ]
A. introduced
B. wanted
C. hired
D. recommended
室内给水管道安装中,给水管与排水管平行埋没时管外壁的最小允许距离为()。
A.0.5m
B.1.0m
C.1.5m
D.2m