下列物质用途不正确的是
A.溴化银可用于制胶片和有色玻璃
B.过氧化钠可用于漂白织物、羽毛等
C.碘化银可用于人工降雨
D.可以用于配制含碘食盐
答案:D
—Why don't we just leave it until tomorrow?
—________ I'm dead tired today.
A.Forget it.
B.I couldn't agree more.
C.It all depends.
D.Don't mention it.
下列治疗银屑病的首选方法是()。
A.红外线
B.长波紫外线
C.中波紫外线
D.短波紫外线
E.电脑中频