化学镀镍常用的配合剂是EDTA。

题型:判断题

问题:

化学镀镍常用的配合剂是EDTA。

考点:化学工程电化学工程电化学工程题库
题型:判断题

阅读理解。

    Once there was a piano player in a bar (酒吧). People came just to hear him play. But one night, a lady

asked him to sing a song.

    "I don't sing," said the man.

     But the lady told the waiter,"I'm tired of listening to the piano. I want the player to sing!"

     The waiter shouted across the room, "Hey, friend! If you want to get paid, sing a song!"

     So he did. He had never sung in public before. Now he was singing for the very first time! Nobody had

ever heard the song Mona Lisa sung so beautifully!

     He had talent (天赋) he was sitting on! He may have lived the rest of his life as a no-name piano player

in a no-name bar. But once he found, by accident, that he could sing well, he went on working hard and

became one of the best-known singers in the US. His name was Nat King Cole.

    You, too, have skills and abilities. You may not feel that your talent is great, but it may be better than you

think. With hard work, most skills can be improved. Besides, you may have no success at all if you just

sit on your talent.

1. The lady asked the player to sing a song because _____. [ ]

A. she had paid him for this

B. she knew him very well

C. she wanted to have a change

D. she enjoyed his singing

2. Nat King Cole succeeded because _____. [ ]

A. the lady helped him a lot

B. he caught the chance

C. he continued to play in the bar

D. he stopped playing the piano

3. The words "sit on" in the passage probably mean          . [ ]

A. fail to realize

B. forget to use

C. try to develop

D. manage to show

4. From the story we know if you have some talent, you should _____. [ ]

A. hide it and wait

B. ask others for help

C. pay no attention to it

D. work hard to improve yourself

5. Which could be the best title (标题) for the passage? [ ]

A. Sing in the Bar

B. Achieve Success in Life

C. Never Lose Heart

D. Find Your Hidden Talent

题型:判断题

对结核菌感染口服异烟肼预防性化疗的疗程是()

A.2~3个月

B.3~6个月

C.6~9个月

D.12~18个月

E.18个月以上

题型:判断题

现阶段,我国处在社会主义初级阶段,这是邓 * * 和我们党对当代中国()的科学判断。

A.基本目标

B.基本矛盾

C.基本国情

D.基本任务

题型:判断题

人类社会发展的规律表明,社会主义现代化必须建立在()的基础之上。

A.发达生产力

B.先进意识形态

C.先进生产关系

D.先进文化

题型:判断题

按照《个人贷款管理暂行办法》的规定,个人贷款支付后,贷款人应采取有效方式对哪些内容进行跟踪检查和监控分析,确保贷款资产安全?

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