下列( )是适宜老人的生活习惯。
A．蹦极
B．打太极拳
C．通宵下棋
D．久看电视
参考答案：B
-Why do you suggest we buy a new machine?
-Because the old one has been damaged _____.[ ]
A. beyond reach
B. beyond repair
C. beyond control
D. beyond description
治疗早期胃癌最好的方法是( )
A．单一化疗B．手术治疗C．姑息手术D．联合化疗E．注射免疫增强剂
