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高等继续教育 / 分析化学(药学专)
正确率:100%
题型描述: 多选题
滴定分析中常用的滴定方式有()
A.置换滴定
B.间接滴定
C.返滴定
D.直接滴定
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分析化学(药学专)
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佳题速递:
根据《罗马条约》建立的欧洲一体化机构有( )
当代世界政治与经济
9.成人在指导儿童游戏时,要考虑儿童的年龄特点,这体现了亲子游戏( )原则。 a. 尊重性b. 安全性c. 参与性d. 活动性
儿童家庭与社区教育
某化脓性脑膜炎患儿出现烦躁不安,频繁呕吐,四肢肌张力明显增高,双侧瞳孔大小不等,对光反射迟钝,应高度警惕患儿出现
儿科护理学(护理本)
Trees mainly serve man in three important ways: They provide him with wood and other products; they provide him shade; and they help to prevent droughts and floods.Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important.In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind(固定) the soil, thus preventing it from being washed away easily;but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert.Two thousand years ago,a rich and powerful country cut down its trees to build warships, with which to gain itself an empire.It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation(饥荒). Which title best fits the passage?
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只要国民收入变动,就会引起投资的加速变动。
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