除热粉散功效与作用

发布时间：2017-07-19 17:30 │ 来源：www.tikuol.com

题型：问答题

问题：

除热粉散功效与作用

考点：中药方剂中药方剂题库

题型：问答题

下列说法不正确的是

A．加热或稀释NH₄Cl溶液，NH₄Cl水解程度均增大

B．滴有酚酞试液的氨水中加入NH₄Cl固体，溶液颜色变浅

C．含有NH₄Cl的氨水中，[NH₄⁺]可能大于[Cl^-]

D．纯水中加入少量NH₄Cl固体，恢复到原温度，水的电离平衡右移且电离常数变大

查看答案

题型：问答题

某小组根据工业生产原理设计如下转化关系，以获取烧碱和金属钛(Ti)。

（1）燃料电池中通入氧气的电极是___________（填“正”或“负”）极，电极反应式是____________；用该电池电解饱和食盐水，若消耗32 g甲醇，理论上Ⅰ中可生成NaOH ________mol。

（2）如图所示，理论上加入Ⅱ中的TiO₂和焦炭的物质的量之比是___________；由TiCl₄得到金属Ti的化学方程式是______________。

（3）根据Ⅲ中合成甲醇的反应，该小组保持温度不变，在两个相同的恒容密闭容器中进行实验，有关实验数据如下：

① P1____________4MPa（填“＞”、“＜”或“＝”）；

② 实验Ⅰ条件下合成甲醇的热化学方程式是____________。

查看答案

题型：问答题

公安机关承担的专政职能是( )的必然体现，公安机关专政职能的削弱，就意味着国家专政职能的削弱，它必将影响到国家的安全和社会的安定，关系到人民民主专政国家 * * 的巩固。

A．公安机关性质

B．公安机关任务

C．公安机关武装性质

D．公安机关为人民服务原则

查看答案

题型：问答题

读下图，完成下列各题。

在图中②城市南部的广阔海域，为世界著名的渔场，其形成原因主要是由于（）

A.冷海水上泛而致

B.位于密度流海区

C.沿岸大量河水注入

D.位于寒暖流交汇处

查看答案

题型：问答题

Recently, I flew to Las Vegas to attend a meeting. As we were about to arrive, the pilot announced with apology that there would be a slight (16) before setting down. High desert winds had (17) the airport to close all but one runway. He said that we would be (18) the city for a few minutes waiting to (19) . We were also told to remain in our seats meanwhile with our seat belts fastened (20) there might be a few bumps(颠簸). Well, that few minutes turned into about four-five minutes, including a ride that would make a roller coaster(过山车) (21) by comparison. The movement was so fierce that several passengers felt (22) and had to use airsickness bags. As you might guess, that’ s not a good thing to have happen in a(n) (23) space because it only (24) to increase the discomfort of the situation.
About twenty minutes into the adventure, the entire airplane became very (25) There was now a sense of anxiety and fear that could be (26) noticed. Every passenger simply held on for dear life …except one. A (27) was having a good time！ With each bump of the (28) , he would let out a giggle (咯咯地笑)of delight. As I observed this, I (29) that he didn’t know he was supposed to be afraid and worried about his (30) . He neither thought about the past nor about the future. Those are what we gown--ups have learned from (31) . He was (32) the ride because he had not yet been taught to fear it. Having understood this, I took a deep breath and (33) back into my seat, pretending I was (34) on a roller coaster. I smiled for the rest of the flight. I even (35) to giggle once or twice, much to the chagrin(随恼) of the man sitting next to me holding the airsickness bag.

The passage starts with an elephant story in order to explain that in India ______.

A．people easily fall victim to elephants’ attacks

B．the man-elephant relationship is getting worse

C．elephant tamers are in short supply

D．dogs are as powerful as elephants

查看答案

更多题库