酸性焊条和碱性焊条是根据焊条药皮熔化后熔渣的()分类的。A、物理特性 B、化学特性

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问题:

酸性焊条和碱性焊条是根据焊条药皮熔化后熔渣的()分类的。

A、物理特性

B、化学特性

C、化学成分

D、颜色

考点:冷作钣金工铆工(中级)铆工(中级)题库
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全口义齿试戴时、发现什么问题肯定需要重作()

A.恶心

B.中线不对

C.垂直距离过高

D.发音不清

E.牙色不协调

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清晨荷叶上常挂有晶莹的露珠,这是由于夜间空气中的水蒸气遇冷_________(填物态变化的名称)形成的。空气中弥漫着荷花的清香,这是分子的_________现象。

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随KCl、CaCl2质量分数的增加,伊利石、高岭石的膨胀率()。

A、显著提高

B、急剧下降

C、无明显变化

D、不发生变化

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Being a good parent is harder now than it has ever been before. In pressurised modern lives, demands to be a fulfilled individual, and a good partner and a good worker, take no account of being a good parent. We haven’t left space for the nurturing parents expect to provide and children need. As a result, many parents in the western world just don’t work.

Something will have to change. With luck, people in the future will only have children if they really want them And that should mean that parenthood is seen as a much more positive commitment than it is now, and that parents are socially supported, and admired for doing a good job.

The problem is that in the last generation or so we’ve come to assume that women should be able, and should want, to do everything that by tradition men have done at the same time as pretty well as everything that by tradition women have done. And it’s just not possible. Indeed since adopting a male agenda in life is arguably only another form of submission (男尊女卑), quite a number of highly educated and economically privileged women are now choosing to take career breaks so as to be at home with their children for longer than that insulting 18 weeks*.

The most welcome trend in parenting is that men are participating more and more. Even that is not free of conflict, though. Intellectually, women want men to be equal parents and do their share. But there’s often a contradictory emotional sub-text because children are the last bastion (堡垒) of distaff power (女性的权利) in the family. "I want him to help me but this is my territory and being better at it is one of the few things I’ve got as a female. "

Having children—especially the first child—puts a bigger strain on a couple’s relationship than anything else they ever do. So a future of smaller families and more people choosing not to have children at all could well leave couples closer than they are today; for many, the purpose of being together would be solely to pleasure and support each other-an interesting prospect.

*在英国,妇女的法定产假是18周。

Which is true about the future trend().

A. More parents will choose to stay at home to take care of their children.

B. Families with several children will emerge per and richer.

C. More people will choose not to get married.

D. More couples will choose not to have children.

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风口燃烧带就能产生CO2。()

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