尽头式消防车道的回车场不宜小于()。
A.20m×20m
B.18m×18m
C.15m×15m
D.12m×12m
参考答案：C
There's _____ in today's newspaper.[ ]
A. something important
B. important something
C. anything important
D. important anything
结构层弯拉应力
