丝网目数与网点有什么关系?

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问题:

丝网目数与网点有什么关系?

考点:丝网印刷工考试丝网印刷工考试题库
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中医的肾子指

A.抬高患肢
B.防寒保暖
C.局部热敷
D.弹力绷带缠缚
E.忌食辛辣发物

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已知f(x)=
ax-1
ax+1
(a>0,且a≠1)

(Ⅰ)求f(x)的反函数f-1(x);
(Ⅱ)若不等式|x-a|≤3的解集为{x|-1≤x≤5},解关于x的不等式f-1(
1
2x
)<loga
1+x
1-x
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甲乙两国签订了一份关于共同开发海洋资源的条约,该条约在签订时完全符合当时的国际强行法规则,但是在两国缔结条约并开始履行义务3个月后,国际社会缔结了一项新的国际强行法规则,而甲乙两国的条约正好与该规则相抵触,甲乙两国都是《维也纳条约法公约》的缔约国。关于此种情况,正确的判断是()

A.根据"约定必守"的最高规范,由于甲乙两国的条约缔结于强行法规则之前,条约有效

B.条约自始无效

C.条约自与新的强行法规则发生抵触时起失效

D.失效或继续有效与否由甲乙两国决定

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When I was an official of a school in Palo Alto, California, Polly Tyner, the president of our board, wrote a letter that was printed in the Palo Alto Times. Polly’s son, Jim, had great difficulty in school. He was classified as the educationally handicapped and required a great deal of patience on the part of his parents and teachers. But Jim was a happy kid with a great smile that lit up the room. His parents knew his difficulties, but they always tried to help him see his strengths so that he could walk with pride. Shortly after Jim finished high school, he was killed in a motorcycle accident. After his death, his mother submitted this letter to the newspaper.

“Today we buried our 20-year-old son. He was killed in a motorcycle accident on Friday night. How I wish I had known that the last time I had talked to him would be the last time. If I had only known that, I would have said to him, ‘Jim, I love you and I’m always so proud of you.’ I would have taken the time to count the many blessings he had brought to the lives of the people who loved him. I would have taken the time to appreciate his beautiful smile, his laughter, and his genuine love to other people.

“When I put all the good things on the scale and try to balance them with all the irritating (恼人的) things such as the radio that was always too loud, the haircut that wasn’t to our liking, the dirty socks under the bed, etc., I find that the irritations really don’t amount to much.

“I won’t get another chance to tell my son all that I would have wanted him to hear, but, other parents, do have a chance. Tell your young people what you would want them to hear as if it may be your last conversation. The last time I talked to Jim was the morning of the day when he died. He called me to say, ‘Hi, Mom! I just called to say I love you. You have to go to work now. Bye.’ That day, he gave me something to treasure forever. ”

If there is any purpose at all for Jim’s death, maybe it is to make others appreciate life more and to tell people, especially family members, that they should take the time to let each other know just how much they care. You may never have another chance. Do it today!

小题1:Who was Jim?

A.The child of the Tyners’.

B.The writer’s relative.

C.The president of a school board.

D.An official of a school.小题2: What’s the meaning of the underlined phrase “the educationally handicapped”?

A.The learning difficulty.

B.The physical problems.

C.The psychological problems.

D.The communication difficulty.小题3:According to the writer, which of the following about Jim is TRUE?

A.He was always sad about his school marks.

B.His parents always scolded him about his bad school marks.

C.His study needed more attention from his parents and teachers.

D.He was killed in a car accident.小题4:The purpose of Polly’s letter is to                .

A.memorize her son

B.teach parents to appreciate their children

C.teach children how to be good boys

D.give some advice on how to deal with children’s problems

题型:问答题 简答题

电解槽在下列哪种情况时不用停槽大修可继续保持生产()。

A、炉底压降过高,所生产的铝弥补不了因炉底压降过高所造成的浪费电能。

B、炉底破损严重,铝液中铁含量持续升高,个别阴极钢棒温度较高,多次修补效果不明显。

C、因人造身腿起层,如加工不勤,易出现炉帮发红。

D、炉底隆起严重。

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