慢性胃溃疡最常见的并发症是（）。
A．穿孔
B．出血
C．幽门狭窄
D．癌变
E．肠上皮化生
参考答案：B
---Is your stomach getting better?
---No, it’s ________.
A．well
B．worse
C．better
D．worst
A．He didn’t work as hard as he was supposed to.
B．He didn’t pass the physics exam.
C．He did better in an earlier exam.
D．He found something wrong with the exam.
