家庭成员间相互理解、表达和交流彼此的深层情绪与感受，这表现了家庭的哪种功能（）。 A

下列哪项不是急性出血坏死型胰腺炎的主要并发症（）.

A.消化道出血

B.成人呼吸窘迫综合征

C.急性肾衰竭

D.心力衰竭

E.胰原性腹泻

阅读理解

     Trees are useful to man in three important ways: they give him wood and other useful things, they give

him cool places, and they help to stop drought and flood.

     Unluckily, in many parts of the world, man has not found that the third of these points is the most

important. Man wants to make money from trees, so he has cut them down in large numbers, only to find

that without them he has lost the best friends he had. And also, he is usually too careless to plant and look after new trees. So the forests slowly disappear.

     This does not only mean that man will have fewer trees. The results are even worse: for where there are trees, their roots break up soil, make the rain in, and also bind the soil, thus stopping it from being washed away easily; but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When all the top-soil is gone, nothing is left but useless desert.

1. The most important points of trees to man is ________.

A. they help him to make money            

B. they give him cool

C. they give him wood and other things      

D. they help him to stop drought and floods

2. In many places forests slowly disappear because ________.

A. many trees have been cut down by man            

B. new trees are not well looked after

C. man has not paid enough attention to planting trees    

D. all the above

3. Land becomes desert after all trees are cut down because ________.

A. roots of trees break up the soil      

B. there are too many rainfalls to make it

C. strong winds bring a lot of sand      

D. no tree keeps the rain and protects the top-soil.

4. Which title best fits the passage?

A. Trees and Man                        

B. The Function of Tree Wood

C. How do People do with Trees?            

D. The Usage of Tree Roots

电动机启动时的端电压一般不低于额定电压的（）。

A、50%

B、75%

C、100%

D、120%

重量分析中，对沉淀物进行烘干和灼烧的目的是什么？

若在李某与A公司签订委托合同前，A公司的经纪人员为了得到这项业务而对李某作出一些口头承诺，但在所签委托合同中并未提及，经确认，A公司的行为给李某造成了预期利益损失，引起李某的争议。则下列说法正确的是( )。

A．A公司在所签委托合同中并未提及那些口头承诺，所以A公司不承担由此而引发的责任

B．A公司应承担违约责任

C．A公司应承担缔约过失责任

D．A公司不应承担违约责任，但应承担行政处罚