热水管道穿过建筑物顶棚、楼板、墙壁和基础处,应加()。
参考答案:套管
下列对于慢性胃炎的治疗,错误的是()
A.有H.pylori感染的增加胃黏膜保护
B.上腹饱胀明显的使用促胃动力药
C.精神症状明显者可使用镇静剂
D.有恶性贫血时可使用维生素B12、叶酸
E.有痉挛性腹痛者可用解痉剂
—Do you think I should accept his invitation, Jim?
—________If I were you, I certainly would.
A.None of your business.
B.It depends.
C.Why not?
D.I don’t think so.