女性,60岁,间断上腹痛4年。纳差,消瘦贫血。胃镜检查,黏膜红白相间,以白为主()。
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:B
《渭南文集》的作者是( )
A.杜牧
B.李商隐
C.陆游
D.苏轼
A mechanical davit is designed to automatically().
A.position the boat at the embarkation station
B.lift the boat off the inboard chocks
C.energize the winch for the falls
D.set the brake on the winch