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【简答题】
298K时,反应BaCl2·H2O(s)【图片】BaCl2(s)+H2O(g)达平衡时,PH2O=330Pa,反应的ΔrGmө为 A. -4.3 kJ· mol -1 B. +14.3 kJ· mol -1 C. +139 kJ· mol -1 D. -141 kJ· mol -1
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举一反三
【单选题】S1: Send out two lines. Head spring first and head line second. S2: Roger. Q:What is the sequence 次序 of sending out lines?
A.
Head line first and Head spring second
B.
Head breast first and head spring second
C.
Head spring first and head line second
D.
Head spring first and head breast second.
【简答题】Thanks a Million, Dad I was born disabled.A difficult birth, feet first, my head stuck.By my first birthday, I couldn't stand or walk. When I was three, the doctor told dad I had cerebral palsy (脑瘫).A...
【简答题】目前市场上的纯电动汽车的动力电池主要采用的是锂电池,其类型有哪些?
【单选题】下列对地理信息系统与地图的关系描述错误的是:
A.
地理信息系统脱胎于地图,并成为地图信息的又一种新的载体形
B.
计算机制图为地图特征的数字表达、操作和显示提供了成套方法,为地理信息系统的图形输出设计提供了技术支持
C.
地理信息系统中的空间数据表现许多技术来源于地图学,但是,其表现手段更加灵活和丰富
D.
地图强调的是空间分析、符数据存储与显示,而地理信息系统更注重于信息分析
【单选题】听力原文: On the 20th anniversary of the first official report on AIDS, the head of the United Nations AIDS Program warns the deadly disease may only be at its early stages in many parts of the world. Dr....
A.
22 million.
B.
36 million.
C.
25 million.
D.
58 million.
【简答题】There’s a man in the habit of hitting me on the head with an umbrella. At first I couldn’t stand it; now I’m used to it. I don’t know his name. I know he’s ordinary in appearance, wears a gray suit an...
【单选题】听力原文: On the 20th anniversary of the first official report on AIDS, the head of the United Nations' AIDS program warns the deadly disease may only be at its early stages in many parts of the world. Dr...
A.
22 million.
B.
36 million.
C.
25 million.
D.
58 million.
【简答题】A. p.p1%20%7Bmargin%3A%200.0px%200.0px%200.0px%200.0px%3B%20text-align%3A%20center%3B%20-webkit-hyphens%3A%20auto%3B%20font%3A%2014.0px%20Times%3B%20color%3A%20%23ffffff%3B%20-webkit-text-stroke%3A%20...
【判断题】目前市场上的纯电动汽车主要采用的动力电池是铅酸电池。
A.
正确
B.
错误
【单选题】The first fossil dinosaur to be found with an intact body covering has feathers from head to tail. strengthening the view that modern birds evolved from dinosaurs, scientists say in an article publish...
A.
fly
B.
fight
C.
keep warm
D.
frighten the enemy
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