改变发酵液过滤特性的主要方法有哪些?简述其机理。

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问题:

改变发酵液过滤特性的主要方法有哪些?简述其机理。

考点:食品科学技术发酵工程发酵工程题库
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华某系江塘市某化工厂制剂车间工艺员,负责工艺流程管理和记录,兼做清洗参观服等工作,2009年3月26日午休时,华某提水桶到蒸气阀口处接热水时,被蒸气烫伤,经诊断,华某全身烫伤22%。同年5月17日,华某父亲向江塘市劳动和社会保障局提出工伤认定申请,同年7月11日,该局根据《工伤保险条例》规定作出不予认定为工伤的决定,华某不服,向江塘市人民政府提出行政复议,复议机关维持原决定,华某仍不服,诉至法院。原告诉称,因上班时其工艺流程记录不能中断,所以原告上班时间无法清洗参观服,只有利用午休时间进行清洗。本人因工作受伤,理应认定为工伤。被告辩称,原告不是在上班时间被烫伤,而且原告无法证明其午休提热水是为清洗参观服,故不应认定为工伤。

关于上述材料中所涉及的举证责任的分配,下列表述正确的是( )。

A.华某及其父亲对是工伤的主张承担举证责任

B.江塘市某化工厂对不是工伤的主张承担举证责任

C.江塘市劳动和社会保障局对不予工伤的决定承担举证责任

D.江塘市人民政府对某复议决定承担举证责任

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胸部损伤的主要症状()

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周围神经损伤后,为观察神经的修复情况,可进行下列哪几项检查().

A.肌电图检查

B.神经干叩击试验

C.神经传导速度检查

D.神经支配皮肤触觉检查

E.神经支配肌肉的肌力检查

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要画一个周长是37.68厘米的圆,所用圆规两脚张开的距离应是(  )
A.6厘米B.8厘米C.12厘米
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When you are little, it’s not hard to believe you can change the world. I remember my enthusiasm when, at the age of 12, I addressed delegates at the Rio Earth Summit. “I am only a child,” I told them .“Yet I know that if all the money spent on war was spent on ending poverty and finding environment answers, what a wonderful place this would be. In school you teach us not to fight with others, to work things out, to respect others, to clean up our mess, not to hurt other creatures, to share, not to be greedy. Then why do you go out and do the thing you tell us not to do ? You grown-ups say you love us, but I challenge you, please, to make your actions reflect your words.”

I spoke for six minutes and received a standing ovation. Some of the delegates even cried. I thought that maybe I had reached some of them, that my speech might actually spur(激励) action. Now, a decade from Rio, after I’ve sat through many more conferences, I’m not sure what has been accomplished. My confidence in the people in power and in the power of an individual’s voice to reach them has been deeply shaken.

When I was little, the world was simple. But as a young adult, I’m learning that as we have to make choices — education, career, lifestyle — life gets more and more complicated. We are beginning to feel pressure to produce and be successful. We are taught that economic growth is in progress, but aren’t taught how to pursue a happy, healthy or sustainable(可持续的) way of living. And we are learning that what we wanted for the future when we were 12 was ideal and innocent.

Today I’m no longer a child, but I’m worried about what kind of environment my children will grow up in. I know change is possible, because I am changing, still figuring out what I think. I am still deciding how to live my life. The challenges are great, but if we accept individual responsibility and make sustainable choices, we will rise to the challenges, and we will become part of the positive tide of change.

小题1:The purpose of what the writer said at the age of 12 was to _____.

A.end poverty and make school beautiful

B.find environmental answers and keep the words that they always told themselves

C.end poverty and solve the problems about environment

D.find a wonderful place and clean it up小题2:What does the underlined word “ovation” in the second paragraph refer to _____.

A.a long period of laughing

B.a warm welcome

C.an expression used for greeting

D.a long period of clapping and applause小题3:It becomes clear that the writer is possibly _____ now.

A.in his teens

B.in his twenties

C.in his thirties

D.in his forties小题4:Which of the following is true according to the passage?

A.the writer thinks what he thought at the age of 12 is mature.

B.the writer’s children will certainly live in an ideal environment.

C.the writer’s confidence in the people in power has deeply shaken their voice.

D.the writer’s belief does not change when he grows up.

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