作用时间最长、最容易发生低血糖的降糖药是
A．格列吡嗪B．诺和龙C．格列本脲D．格列齐特E．格列喹酮
参考答案：C
人体每天叶酸需要量为（）
A.0.2～0.4g
B.0.2～0.4mg
C.0.05～0.1mg
D.0.2～0.4μg
E.1～2g
Don't_______the pcople who are in trouble. You should be friendly to them. [ ]
A. look at
B. look after
C. laugh at
D. play with
