爆破作业必须执行“一炮三检制”
参考答案:对
以下为增强磺酰脲类口服降糖作用的是
A.磺胺类
B.保泰松
C.双香豆素
D.安妥明
E.青霉素
I ____ pay Tracy a visit, but I am not sure whether I will have time this Sunday.[ ]
A. should
B. might
C. would
D. could