具有利尿通淋作用而用于热淋的药物有
A．木通、灯心草
B．石韦
C．地肤子、篇蓄
D．金钱草、海金砂
E．瞿麦
参考答案：A,B,C,D,E
R2+离子中有23个电子，R元素的相对原子质量为55，则R原子核内的中子数为（ ）
A．25
B．28
C．30
D．32
“Would you have told him the answer had it been possible?”
“I would have, but I ＿＿＿＿so busy then.”
A．had been
B．were
C．was
D．would be
