题目内容

A．sandy beachesB．river mouthsC．coastal areasD．reef areas

A. sandy beaches
B. river mouths
C. coastal areas
D. reef areas

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A．less thanB．more thanC．as much asD．as little as

A. less than
B. more than
C. as much as
D. as little as

A．exceptB．besidesC．despiteD．without

A. except
B. besides
C. despite
D. without

对安全生产检查人员个人素质的要求较高。

A. 经验检查法
B. 常规检查
C. 安全检查表法
D. 仪器检查法

出现了下列哪种情况必须行手术治疗（）

A. 并发幽门梗阻
B. 溃疡穿孔
C. 胃溃疡癌变
D. 溃疡大出血
E. 发现胃溃疡伴异型增生