肝素抗凝作用的特点是：
A．仅在体内有效
B．起效缓慢
C．体内体外均有效
D．口服有效
E．仅在体外有效
参考答案：C
The top officer in Beijing says that all construction work for the Beijing Olympic
by 2006.
A．has been completed
B．has been completed
C．will have been completed
D．will have completed
《廉政准则》中规定，不准党员领导干部（）。
A、从事有悖公民道德、职业道德、家庭美德的活动
B、从事有悖社会公德、职业道德、家庭美德的活动
C、从事有悖社会风气、职业操守、家庭美德的活动
