乙醇、乙二醇、丙三醇分别与足量金属钠反应产生等体积的H2（相同状况下），则上述三 发布时间：2017-06-04 01:07 │ 来源：www.tikuol.com 题型：选择题 问题： 乙醇、乙二醇、丙三醇分别与足量金属钠反应产生等体积的H2（相同状况下），则上述三种醇物质的量之比为 A．2：3：6B．3：2：1C．4：3：1D．6：3：2
题型：选择题 阅读下面短文，从短文后所给各题的四个选项中，选择最佳选项。 October 16 is World Food Day. This day is also the anniversary (纪念日) of the United Nations Food and Agriculture Organization (FAO) (联合国粮农组织). More than 100 countries are holding special events. All of these aim to celebrate the establishment of the FAO in 1945. The theme chosen for this year's World Food Day is "Water: Source (资源) of Food Security". A UN report says that over 6 million people have died from hunger and related diseases so far this year alone. More than 850 million people, or about one in seven, around the world do not get enough food, and the need for food will increase as the world's population grows. The UN also reports that by year 2030, the world may need 60% more food. Most of that increase will have to come from agriculture supported by water irrigation (灌溉). However, fresh water is already in short supply in many countries. Jacques Diouf, the director of the FAO, says that there are 20 countries that do not have enough water to produce enough food for their populations. Ten nations use more than 40% of their total fresh water foragriculture. He fears that the problem will only become worse as the need for water by people and by industry grows. So water is one of the most important things in the world today. 1. What Mr. Diouf says shows that he most worries about _______. [ ]A. the future of the FAO B. the short of water C. the overgrowth of population D. the development of the environment 2. The reading above implies (暗示) that _______. [ ]A. fresh water for us is quite enough B. the world's population is getting smaller C. we will need more water to irrigate D. industry is the most important thing today 3. The passage is mainly about _______. [ ]A. how to celebrate World Food Day B. the increase of food in many countries C. the importance of water for food D. the UN Food and Agriculture Organization g 查看答案
题型：选择题 2011年我国宏观经济政策以“积极稳健、审慎灵活”为基本取向，实施积极的财政政策和稳健的货币政策。其中，实施稳健的货币政策有利于[ ]①增加投资需求，拉动经济增长②控制信贷规模，缓解通胀压力③调整经济结构，优化资源配置④刺激消费需求，调节市场物价A、①②B、①④C、②③D、③④ 查看答案
题型：选择题 摘取式分拣是分拣货物采取的一种方式，其操作方法包括以下几个环节（）。A、将数量较多的同种货物集中运到发货场B、拉着分拣箱在排列整齐的仓库货架间巡回走动C、根据每个货位货物的发送量分别取出货物并分别投放到每个用户的货位上D、按照配送单上所列的品种、规格和数量将客户所需要的货物拣出及装入集货箱内E、在馐物上贴上标签 查看答案