题目

生活中有时也会出现通货紧缩现象。下列关于通货紧缩的说法正确的是（   ） ①通货紧缩现象通常是出现在经济相对萎缩的时期 ②通货紧缩表现为社会总需求持续小于社会总供给 ③通货紧缩会引起物价持续上涨和居民购买力下降 ④通货紧缩会造成生产下降、失业增加和市场萎缩 A.①②③    B.②③④    C.①②④    D.①②③④ --- Forgotten something? I can keep an eye on your kids if you want to go and get it.---_____________.Thank you all the same.A．It’s very nice of you.B. Oh, how careless of me.C. I might as well go and get it.D. Well, I can do without it.