何谓还原染料的光敏脆损作用?分析其产生的可能原因?

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问题:

何谓还原染料的光敏脆损作用?分析其产生的可能原因?

考点:化学工程染料染料题库
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   Do you want to be a basketball player like Kobe Bryant , Shaquille O’Neal or Yao Ming ? Come to join us ! We have many sports clubs : basketball , ping-pong , soccer , volleyball , and more . The price is 5 dollars for each lesson .

Do you want to join our sports clubs ? Please call Mr. Green . He plays basketball very well . His telephone number is 371-1236 . His e-mail address is spcb@163.com . Or you can call Miss Jones at 371-1237 . She is our tennis coach(教练). She is good with the students . Her e-mail address is jiayi@126.com .

小题1:From the passage , we know Kobe Bryant and Shaquille O’Neal are _______ players .

A.volleyball

B.tennis

C.basketball

D.ping-pong小题2:Miss Jones can help you with _______ .

A.computer

B.singing

C.art

D.tennis小题3:---How much is each lesson ? ---________ .

A.10 yuan

B.5 yuan

C.5 dollars

D.10 dollars小题4: Mr. Green plays _______ very well .

A.tennis

B.basketball

C.volleyball

D.ping-pong小题5:________ is good with the students .

A.Miss Jones

B.Mr. Green

C.Yao Ming

D.Kobe Bryant

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根据《职工带薪年休假条例》的规定,张某累计工作年限为18年,可以享受带薪年休假的天数为( )天。

A.10

B.15

C.17

D.18

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简述补体的激活途径。

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工商网络经济监管是指工商行政管理部门依托自身职能职责,根据相关法律法规,对网络经济中的各类网络经营主体、网络经营行为和网络经营客体的()进行监管,营造公平竞争、诚信经营的网络环境,促进网络经济健康发展。

A.存在性

B.合法性

C.实用性

D.有效性

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哪些不是引起季节性变应性鼻炎的变应原()

A.花粉

B.谷物

C.艾蒿

D.螨虫

E.柳絮

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