写出下列物质的电离方程式: NaOH______Na2CO3______H2SO

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问题:

写出下列物质的电离方程式:

NaOH______ Na2CO3______  H2SO4______NH4NO3______.

考点:电离方程式
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A young man was going to join the army (军队) and had to (41) a medical examination. The doctor was sitting at a desk when he came in. He said to the man, "Take your coat and shirt off and (42) on that chair.
The young man did so. The doctor looked at him for a moment without (43) up from his chair and then said, "All right. Put your clothes on again.
"But you haven’t examined me at ail!" the young man said in (44) .
"There is no need to do so," the doctor said with a (45) .
"When I (46) you to take your coat and shirt off, you heard me all right, so there is nothing wrong with your (47) . You saw the chair, so your eyes are (48) . You could take your clothes off and sit on the chair, so you must be in good health. And you understand what I told you to do and did it without a (49) , so you (50) healthy enough for the army.\

[A] hands[B] mind[C] ears

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不允许用环形防喷器长期关井,长期关井应改用()。

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薄荷入汤剂()

A.宜先煎

B.不宜久煎

C.宜包煎

D.宜另煎

E.宜后下

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心理应激(担心患了癌症)可首先导致下丘脑-垂体-肾上腺皮质系统功能亢进。

在以下心理评估量表中最可能发现其有问题的是()

A.生活事件量表

B.抑郁自评量表

C.A型行为量表

D.B型行为量表

E.C型行为量表

题型:填空题

按《点燃式发动机汽车排气污染物限值及测量方法(双怠速法和简易工况法)》(GB18285—2005)的规定,一辆2001年7月1日前生产的轿车(汽油发动机),尾气排放污染物的检测应采用()。

A.怠速法

B.双怠速法

C.不透光烟度法

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