伴有高血压的消化性溃疡患者不宜用（）
A.制酸剂
B.甲氰咪胍
C.生胃酮
D.抗胆碱能药
E.硫糖铝
参考答案：C
— My car has broken down. Could you please give me a ride tomorrow?
— I'm sorry I _____. I'm leaving for London tonight. [ ]
A. can't
B. mustn't
C. couldn't
D. shouldn't
对于已批准同意降低功率因数标准的客户，如果实际功率因数高于降低后的标准时，给予减收电费。但低于降低后的标准时，给予加收电费。（）
