胃、十二指肠溃疡病人出现大量呕吐物、顽固、定时呕吐，提示病人可能发生（）。
A.急性穿孔
B.幽门梗阻
C.溃疡出血
D.肠壁破裂
E.癌变
参考答案：B
---Why not come and join us in the game, Linda?
--- ______, but I have something to discuss with Mr. Smith at his office now.
A．Let’s go
B．I’d like to
C．Yes, please
D．It’s a pleasure
婚舞
