男性,52岁,上腹不适5年。胃镜检查:胃窦黏膜可透见血管网,胃酸分泌正常( )
A.慢性浅表性胃炎B.A型胃炎C.B型胃炎D.胃癌E.十二指肠溃疡
参考答案:C
My job is feeding the cat. Now it's your turn ___ the dog.[ ]
A. feeding
B. to feed
C. to have fed
D. being fed
隧道爆破作业时,喷射混凝土终凝到下一循环放炮间隔时间不应小于()。
A、2h
B、4h
C、3h