各项工程建设规划阶段,一般都采用()比例尺的地形图。
A.大
B.中
C.小
D.任意
参考答案:A
Disappointed, I was about to leave________something occurred, which________my attention. [ ]
A. while; paid
B. and; got
C. before; drew
D. when; attracted
世界卫生组织将青春期的年龄范围定为()
A.10~24岁
B.10~20岁
C.15~24岁
D.10~14岁
E.15~19岁