已知y=f（x）在（-∞，+∞）上是减函数，且f（1-a）＜f（3a-1），则a 发布时间：2017-04-25 05:56 │ 来源：www.tikuol.com 题型：填空题 问题： 已知y=f（x）在（-∞，+∞）上是减函数，且f（1-a）＜f（3a-1），则a的范围是______．
题型：填空题 患者，男性，52岁，肝硬化6年，呕血1天。胃镜确诊为食管曲张静脉出血。为患者止血的最宜方法是（）。A.静脉注射止血药B.口服去甲肾上腺素C.贲门周围血管离断术D.限制性门腔分流术E.双囊三腔管压迫止血 查看答案
题型：填空题 根据对话情景，有两个选项多余。A. It will be one hour's drive. B. I like watching animals. C. So will I. D. Yes, that's right. E. It will rain tomorrow. F. It won't rain tomorrow. G. I'm not sure about that.W: We have to meet the others at 8:30 at the reservation (保护区), don't we?M: __1__ W: Do you know how long it takes to get there?M: Yes. __2__ W: Can you tell me something about the reservation?M: Well, it's an area that protects lots of different animals.W: What kinds of animals can we see there?M: __3__ I only know that there are many different kinds there.W: I'm sure there will be some interesting animals there. I'll take my camera with me.M: __4__ Should we take an umbrella?W: I don't think so.__5__ M: Well, see you tomorrow then. 查看答案