本病例的治疗原则为
A．泄热导滞，润肠通便
B．滋阴通便
C．滋阴益胃，和中止痛
D．疏肝理气，泄热和胃
E．清热化湿，理气和胃
参考答案：C
Lai Changxing _____ Canada with his family before the policemen began to catch him. [ ]
A. had been to
B. has gone to
C. would go to
D. had arrived in
伸缩接头有什么作用？它有哪两种形式？
