[单项选择]{{B}}第三篇{{/B}}

If the salinity(含盐量) of ocean waters is analyzed, it is round to vary only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic salinity. One of these is the subtraction of water from the ocean by means of evaporation—conversion of liquid water to water vapor. In this manner, the salinity is increased, since the sales stay behind. If this is carried to the extreme, of course, white crystals of salt would be left behind; this, by the way, is how much of the table salt we use is actually obtained. The opposite of evaporation is precipitation, such as rain, by which water is added to the ocean. Here the ocean is being diluted so that the salinity is decreased. This may occur in areas of high rainfall or in coastal regions where rivers f A. The elements of salt. B. The bodies of water of the world. C. The many forms of ocean life. D. The salinity of ocean water. 查看答案 更多"{{B}}第三篇{{/B}} If the s"的相关试题: [单项选择]{{B}}第三篇{{/B}} If the salinity(含盐量) of ocean waters is analyzed, it is round to vary only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic salinity. One of these is the subtraction of water from the ocean by means of evaporation—conversion of liquid water to water vapor. In this manner, the salinity is increased, since the sales stay behind. If this is carried to the extreme, of course, white crystals of salt would be left behind; this, by the way, is how much of the table salt we use is actually obtained. The opposite of evaporation is precipitation, such as rain, by which water is added to the ocean. Here the ocean is being diluted so that the salinity is decreased. This may occur in areas of high rainfall or in coastal regions where rivers f A. coastal areas B. tropical areas C. rainy areas D. turbulent areas 查看答案 [判断题]一般土壤由于含盐量、含水量都小，可采用普通防腐等级。 查看答案 [单项选择]一杯含盐15%的盐水200 克,要使盐水含盐20%,应该加盐多少克( ) A. 12.5 B. 10 C. 5.5 D. 5 查看答案 [单项选择]当含盐为30%的60克盐水蒸发为含盐40%的盐水时，盐水重量是多少克？ A. 45 B. 50 C. 55 D. 60 查看答案 [判断题]降低锅炉含盐量的主要方法：①提高给水品质；②增加排污量；③分段蒸发。 查看答案 [单项选择]第三篇 　　 Water 　　The second most important constituent (构成成份) of the biosphere (生物圈) is liquid water. This can only exist in a very narrow range of temperatures, since water freezes at 0℃ and boils at 100℃. Life as we know it would only be possible on the surface of a planet which had temperatures somewhere within this narrow range. 　　The earth’s supply of water probably remains fairly constant in quantity. The total quantity of water is not known very accurately, but it is about enough to cover the surface of the globe to a depth of about two and three-quarter kilometers. Most of it is in the form of the salt water of the oceans about 97 percent. The rest is fresh, but three quarters of this is in the form of ice at the Poles and on mountains, and cannot be used by living systems until melted. Of the remaining fractional which is somewhat less than one per cent of the whole, there is 10—20 times as much stored underground water as t A. in the center of the earth. B. on the surface of our planet. C. in a very narrow range of temperatures. D. in the coastal areas of the earth. 查看答案 [单项选择]尽量避免含盐量高的食物，以适应尚未发育成熟的肾脏（）。 A. 2～4周龄新生儿 B. 2～3月龄婴儿 C. 4～6月龄婴儿 D. 6～8月龄婴儿 E. 至少至1周岁 查看答案 [单项选择]{{B}}第三篇{{/B}} {{B}} More About Alzheimer’s Disease{{/B}} Scientists have developed skin tests that may be used in the future to identify people with Alzheimer’s disease and may ultimately allow physicians to predict who is at risk of getting this neurological disorder. The only current means of diagnosing the disease in a living patient is a long and expensive series of tests that eliminate every other cause of dementia. "Since Alois Alzheimer described the disease nearly a century ago, people have been trying to find a way to accurately diagnose it in its early stages," said Patricia Grady, acting director of the National Institute of Neurological Disorders and Stroke in Bethesda, Maryland. "This discovery, if confirmed, could prove a big step forward in our efforts to deal with and understand th A. cure those with Alzheimer’s disease B. discover the cause of Alzheimer’s disease C. predict who might get Alzheimer’s disease D. find the consequences of Alzheimer’s disease 查看答案 我来回答: 提交 最新试题 ●    [单选题]主要矛盾和矛盾的主要方面原理在方法论上应坚持( ) ●    [判断题]总工作票应在分工作票许可后才可许可；总工作票应在所有分工作票终结后才可终结。（ ） ●    [多选题] 开展一级动火作业时，动火工作票一般一式三份，分别由( )收执动火工作票。 ●    [判断题]以经营租赁方式租入固定资产发生的租赁费支出，按照租赁期限均匀扣除。 ●    [判断题]大润发超市销售蔬菜可以开具增值税专用发票。 ●    [简答题]苏轼的名诗《蝶恋花·春景》中“枝上柳绵吹又少”的下一句是？ 网站地图 我要搜题网  版权所有  ©2023  湘ICP备18016427号   购买搜题卡查看答案 [会员特权] 开通VIP， 查看 全部题目答案 [会员特权] 享免全部广告特权 推荐91天 ¥36.8 ￥80元 31天 ¥20.8 ￥40元 365天 ¥88.8 ￥188元 请选择支付方式 微信支付 支付宝支付 点击支付即表示同意并接受了《购买须知》 立即支付 系统将自动为您注册账号 已有账号登录 找回账号密码 请使用微信扫码支付 订单号： 请不要关闭本页面，支付完成后请点击【支付完成】按钮 支付完成 取消支付 恭喜您，购买搜题卡成功 系统为您生成的账号密码如下： 账号 密码 重要提示：请拍照或截图保存账号密码！ 我要搜题网官网：https://www.woyaosouti.com 我已记住账号密码