患者因受情志刺激而发胸闷，时轻时重，声低气怯。其病机是（）
A.怒则气上
B.悲则气消
C.喜则气缓
D.思则气结
E.恐则气下
参考答案：B
简述5000米起点线的画法？
Some poems tell a story or describe something in a way ______ will
give the reader a strong impression.
A．that
B．in which
C．X
D．how
