将抗原或抗体固相化的过程称为()。 A.封闭 B.pH9.6的碳酸缓冲液 C.4℃过

题型:单项选择题 B1型题

问题:

将抗原或抗体固相化的过程称为()。

A.封闭

B.pH9.6的碳酸缓冲液

C.4℃过夜

D.包被

E.1%~5%牛血清蛋白

考点:输血技术(师)血液成分的制备血液成分的制备题库
题型:单项选择题 B1型题

下列词语中加粗的字,每对读音都不相同的一项是[ ]

A.品/摇 况/愤 喉/哽

B.源/愿 憬/孔 大/

C.酌/别 荟/然 样/楷模

D.商/证券 燥热/烦躁 降临/

题型:单项选择题 B1型题

阅读理解。

     A famous teacher was speaking to the students at our school. He began his lesson by holding up a $100

bill (纸币). Then he said to the three hundred students, "Who would like this $100 bill?" The students began to

put up their hands at once. Then he said,"I am going to give this $100 bill to one of you, but first, let me do

this." He then made the bill into a ball. Then he said,"Who wants it now?" The hands went back into the air.

     "Well," he said, "What if I do this?" and he dropped it on the floor and stepped on it. He picked up the dirty,

crumpled (弄皱的) bill and said,"Who still wants it?" Hands went back into the air.

     "My friends," he said,"you have learned a valuable lesson today. No matter (无论) what I did to the money,

you still wanted it because it did not go down in value (价值). It was still worth $100!

     Many times in our lives, we are dropped, crumpled, and stepped on by the chances we take and the things

that happen to us. We feel as if we are worth nothing. But remember, no matter what has happened to you, you will never lose your value: you are always valuable to those people who love you. Your value doesn't come

from what you do or whom you know, but WHO YOU ARE. You are special and valuable. Don't ever forget

it!"

1. Even though it was dirty, the money _____.

A. still went up in value

B. was still ours

C. was worth nothing

D. didn't go down in value

2. We are always valuable to the people _____.

A. who love us

B. who call us

C. who hate us

D. who pay us

3. Your value doesn't come from what you do but _____.

A. who you know

B. who made you

C. who you are

D. who you remember

4. The sentence "Hands went back into the air." Means _____.

A. the students put up their hands again

B. the students put down their hands

C. the students put their hands behind their backs

D. the students put their hands in front of them

5. Why did the famous teacher use a $100 bill at his lesson?

A. Because he wanted to make the bill into a ball

B. Because he was going to give the bill to one his students

C. Because he wanted to make the students know what value was

D. Because he used to drop a bill on the floor and stepped on it

题型:单项选择题 B1型题

中国人寿财险公司销售渠道包括()

A.营销渠道

B.互动渠道

C.重点客户渠道

D.电子营销渠道

题型:单项选择题 B1型题

以下哪种情形下应当根据《食品安全法》规定向国务院卫生行政部门提交相关产品的安全性评估材料,经审查并准予许可的方可进口?()

A.进口利用新的食品原料生产的食品

B.进口食品添加剂新品种

C.进口尚无食品安全国家标准的食品

D.进口食品相关产品新品种

题型:单项选择题 B1型题

绝缘油中的水分有何危害?测定油中微量水分方法有几种?

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