下列哪一种不属于消化性溃疡的并发症()。
A.出血
B.穿孔
C.幽门梗阻
D.癌变
E.难治性溃疡
参考答案:E
Perhaps I'm not quite fit for the job, but________, please let me have a try. [ ]
A. in fact
B. anyhow
C. so
D. otherwise
烘干机开启前应检查温度设置与被烘干物所需温度是否相符。