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=______.