当围岩较好、无涌水、煤仓容积不大,使用时间短时,可采用()。
A.料石砌碹
B.木垛盘支护
C.钢筋混凝土支护
D.裸体无支护
参考答案:B
Look over there-there's a very long, winding path ________ up to the house. [ ]
A. leading
B. leads
C. led
D. to lead
—Tom, is this your dictionary?
—No, it' s not _____. It' s David's.
A. yours
B. his
C. mine
D. hers