“一带一路”建设中，要发挥陕西、甘肃综合经济文化和宁夏、青海民族人文优势，打造（）内 发布时间：2019-01-18 03:49 │ 来源：www.tikuol.com 题型：单项选择题 问题： “一带一路”建设中，要发挥陕西、甘肃综合经济文化和宁夏、青海民族人文优势，打造（）内陆型改革开放新高地。A.青海B.宁夏C.西安D.陕西
题型：单项选择题 卫生部等部门3月1日正式发布公告，撤销食品添加剂过氧化苯甲酰、过氧化钙，自2011年5月1日起，禁止在面粉中添加这两种物质．其中过氧化钙中氧元素的化合价与过氧化氢中氧元素的化合价相同，则过氧化钙的化学式正确的是 [ ]A．CaO2B．CaOC．Ca2O2D．Ca2O 查看答案
题型：单项选择题 完形填空。 In some areas of the world the weather is very 1_____ and this fact plays an important part in the dailylives of the people. 2_____ they are farmers, fishermen, or sailors, for instance, they 3_____ know about these changes ahead of time. Space scientists and airplane pilots 4_____ need weather 5_____. 6_____ earliest time, men have 7_____ the sky, the wind, and the atmosphere, as well as a variety of other weather signs, in order to make weather 8_____. But often their weather predictions have not been accurate (准确的). Now there are government bureaus (局处) in many places that 9_____ weather conditionsvery carefully. They use a lot of scientific 10_____ to help them make their forecasts (预报). For instance, they have instruments to 11_____ speed and direction of the wind. Thus they can predict the 12_____ of a storm. They have special balloons, ships, and airplanes to help them 13_____ their accuracy, and they make use of radar, satellites and computers to gather 14____ information. Today when a 15_____ takes off from an airport, he 16_____ know what kind of weather to expect when he reaches his destination (目的地). If there is 17_____ rain or snow in the mountains, a weather bureau can predict the day and 18_____ the hour that a river may overflow (使涨满) its banks many miles away. When a storm is moving in a certain 19_____, the people in that area can learn of it ahead of time and 20_____ it. ( )1.A.fine ( )2.A.Because ( )3.A.can ( )4.A.generally ( )5.A.information( )6.A.From ( )7.A.noticed ( )8.A.study ( )9.A.research ( )10.A.ways ( )11.A.measure ( )12.A.time ( )13.A.study ( )14.A.necessary ( )15.A.pilot ( )16.A.should ( )17.A.light ( )18.A.even ( )19.A.path ( )20.A.leave B.terrible B.Though B.may B.especially B.fact B.By B.observed B.result B.study B.assistants B.make B.direction B.predict B.impossible B.plane B.can B.slight B.also B.direction B.change C.changeable C.If C.will C.usually C.advice C.Since C.saw C.information C.learn C.instruments C.find C.speed C.increase C.foreign C.person C.must C.large C.besides C.strength C.prepare D.changeless D.When D.need to D.seldom D.result D.After D.discovered D.predictions D.watch D.equipments D.discover D.path D.know D.priceless D.space D.might D.heavy D.including D.speed D.prepare for 查看答案