X、Y、Z、R四种金属与盐酸反应的情况如下图所示,其中一种金属的盐溶液能跟其余三种金属发生置换反应,这种金属是
A. X
B. Y
C. Z
D. R
答案:A
----How do you find the film you saw last night?
---- ________. I can’t think too highly of it.
A.It’s really splendid.
B.It all depends.
C.It’s just so so.
D.It makes no sense
慢性阻塞性肺病患者出现呼吸衰竭
A.通气功能减低B.肺内分流、V/Q比例失调C.弥散功能障碍D.耗氧量增加E.支气管痉挛