排钠贮钾利尿剂是
A．氢氯噻嗪
B．螺内酯
C．呋噻米
D．氨苯蝶啶
E．以上都是
参考答案：B,D
The people there are _______ . So they often talk_______
A. friend ；happy B. friendly; happily C. friend; happily
若x2-4x+m2是完全平方式，则m=______．
