呕吐的基本病机是
A．肝气犯胃，胃气上逆
B．胃失和降，胃气上逆
C．食滞伤胃，胃失和降
D．外邪犯胃，胃失和降
E．脾胃受损，胃失润降
参考答案：B
With more and more forests disappearing, today the public is much concerned about the way _________.
A．nature is being ruined
B．which nature is ruined
C．on which to ruin nature
D．of nature to be ruined
智者的兴起标志着（）民主制度的衰败。
A、罗马
B、希腊
C、瑞典
D、雅典
