A. why did he do it B. why does he do it C. when did he do it D. whether he did it or not
A. worked on B. came out C. paid off D. rose up
A. 弱式有效市场 B. 半强式有效市场 C. 强式有效市场 D. 都不支持
A. expressed B. said C. showed D. stated
A. 鼻 B. 口 C. 口、鼻 D. 头颈部