简述GB18583-2001中胶粘剂中游离甲醛含量检测原理。

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问题:

简述GB18583-2001中胶粘剂中游离甲醛含量检测原理。

考点:化学工程粘合剂粘合剂题库
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引起地壳及其表面形态不断发生变化的作用是(   )

A.内力作用

B.外力作用

C.地质构造

D.地质作用

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在Windows环境下,下列叙述中正确的是( )。

A.在"开始"菜单中可以增加项目,也可以删除项目

B.在"开始"菜单中不能增加项目,也不能删除项目

C.在"开始"菜单中可以增加项目,但不能删除项目

D.在"开始"菜单中不能增加项目,但可以删除项目

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算法空间复杂度是指______。

A.算法程序的长度

B.算法程序中的指令条数

C.算法程序所占用的存储空间

D.算法执行过程中所需要的存储空间

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After winning a big game, athletes are often asked how they feel. Usually athletes say how (1) it is to win this big game. On the contrary, the fact is that losing a big game, or in my case, all the games, can be even harder.

From the spectators’ point of view, last year’s basketball (2) for my high school team was nothing (3) of an embarrassment. And (4) 0 and 20 is certainly nothing to be proud of, that season had a bigger impact on me than any other. As a team captain, I knew it probably wouldn’t be the (5) year, but did I ever think we would lose every game Of course not. Since six of our top players had graduated, it was clear that we were a (n) (6) team who would struggle. The struggle began earlier than expected, (7) , as our team center was suspended (禁赛) for the season, and two key members decided to (8) for some reason. At this point, dropping out probably passed through every player’s mind, but in the end, we all stuck if out, (9) to work still harder.

Then there came a time when even our (10) and given up on us. Personally, I felt like it was (11) worthwhile giving my all. I thought, if even the coach doesn’t believe in us, why should I But just as my hope began to (12) , a teammate called a meeting. He said," Nobody thinks we are going to win, but, as teammates and friends, we (13) it to each other to go all out every game. "

It was that moment that (14) me how to be a leader. It hit me that I certainly didn’t (15) the role. As a leader you can never quit (16) the team who looks up to you. It is one (17) to be named captain, feel great and go through the motions, but it is quite another to be a real captain and make sure everyone realizes their full (18) all the time.

I am sure it is great to go through without losing and bringing home awards. But in all honesty, I (19) the fact that my team lost every game last year. It may not help me to become a better basketball player, but it already has made me a better leader, and (20)

12().

A.fade

B.gain

C.destroy

D.grow

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下列说法不正确的是()。

A.新增固定资产应当从增加的当月开始计提折旧

B.已提足折旧仍继续使用的固定资产和土地不必再计提折旧

C.固定资产的使用寿命、预计净残值和折旧方法一经确定,就不得随意变更

D.当月减少的固定资产,当月仍需计提折旧

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