用常规抗酸分泌剂治疗后,愈合的溃疡在停药后的年复发率为50-70%。根除Hp可使十二指肠溃疡、胃溃疡的年复发率降至()以下
A.5%
B.10%
C.15%
D.20%
参考答案:A
世界上最早开始近代城市化的国家是( )。
A.美国 B.法国 C.英国 D.中国
If penicillin _____________ available, many people ______________ from sickness.
A.weren’t , would have died
B.shouldn’t be, would die
C.hadn’t been, would have died
D.is, will die