JME Construction always uses the percentag

设a≥0，f （x）=x-1-ln²x+2a ln x（x＞0）．

（Ⅰ）令F（x）=xf'（x），讨论F（x）在（0．+∞）内的单调性并求极值；

（Ⅱ）求证：当x＞1时，恒有x＞ln²x-2a ln x+1．

阅读理解。

       伊琳娜越想越生气，第二天一早就去问朗志万：“您怎么可以提这样的问题，来哄骗我们小朋友呢？”     

       朗志万听了，哈哈大笑。他说：“我不是哄骗你们。我是想让你们知道，科学家的话，也不一定都是对的，要动手做做看。”伊琳娜听懂了朗志万的话，高兴地笑了。 

1．比一比，组成词语。

　题(  　) 作(      ) 友(     ) 共(     )

   提(      ) 做(      ) 有(     ) 哄(     )

2．选字填空。

      提    题

    (1)这道(    )很难。 

    (2)面对老师的(    )问，我很紧张。

3．按原文填空。    

        朗志万说：“我是想让你们知道，科学家的话，(        )都是(        )，要(        )看。”  

用所给词的正确形式填空。

1. Two years ago, I __________ (be) a primary school student.

2. Damao is __________ (old) of the twin brothers.

3. __________ (care) we are in the exams, __________ (few) mistakes we'll make.

4.—I don't think this story is as __________ ( interesting) as Father told me.

   —I think so. That one is __________ (interesting), isn't it?

5. It's _________ (more) more difficult than you said.

6. He is very funny and he often makes us _________ (laugh).

7. That boy is so _________ (care) that all his teachers are angry with him.

8. Thomas was _________ (interest) in science when he was very young.

9. Some friends have different views and __________ (interest).

10. —What __________ this word __________ (mean)?

     —It _________ (mean) quickly.

影响空冷凝汽器真空的主要因素包括（）。

A.空气漏入量

B.环境温度

C.电功率

D.绝对电效率

如何检查不正常的超耗、溢余或者虚假盈亏？