目前认为下述哪种疾病与胃癌的发生关系密切（）
A.浅表性胃炎
B.糜烂性胃炎
C.疣状胃炎
D.萎缩性胃炎
E.肥厚性胃炎
参考答案：D
用所给词的适当形式填空。
1. My mother ________ (have) a pet dog last month.
2. I'm sorry to keep you ________ (wait) for such a long time.
3. The teacher told us he ________ (go) to Beijing next week.
4. I think you should dress yourself more ________ (casual).
5. In the future (robot) will be in every home to help people.
下列哪种钢不是奥氏体不锈钢？（）
A.0Cr13
B.1Cr18Ni9Ti
C.0Cr18Ni9
