胸闷，心悸气短者，多为（）。
A.心气不足
B.肝气郁结
C.肺气亏虚
D.脾气亏虚
E.气血亏虚
参考答案：A
A．200W
B．150W
C．100W
D．50W
Seldom______computer games ever since he entered college.
A．did he play
B．has he played
C．he played
D．he has played
