信贷资产风险分类的目的之一是：促进农村合作金融机构树立（）管理理念。A、审慎经营、效

在室温条件下焊后残留于构件中的宏观变形是（）。

A.弹性变形

B.焊接残余变形

C.瞬态应力变形

D.热变形

此题要求改正所给短文中的错误。短文中有10处错误，每句最多有两处。错误设计一个单词的增加、删除或修改。

增加：在缺词处加一个漏词符号（∧），并在此符号下面写出该加的词。

删除：把多余的词用斜线（﹨）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1、每处错误及修改均仅限一词。

2、只允许修改10处，多者（从第11处起）不计分。

When my father bought a computer as birthday gift for me in last year, I

felt very excited. As is known to us all, computers are getting more and more

usefully now. Much information can be stored in it. We can also learn that

has happened lately in the world on the Internet. In the past, people had to do

lots of work that were very dangerous. But now computers can do it, instead. When an exam is coming, I often did some exercises in my computer. Then it will correct them and tell me the right answer. In this way it is very convenient for me to get ready for the exam than before.

（1）下图是电解水的装置，通电一段时间后，B试管中收集到的气体是___________，A试管和B试管中收集到的气体的体积比约等于___________。此实验说明水是由_________________元素组成。

（2）保护水资源是每个公民应尽的义务。当前，造成水体污染的来源主要有（任写一点）______________________________________________________。

减轻粘着磨损的措施有哪些？

气垫式冷却烟枪可以减少烟枪底板与布带之间的（）并兼有散热作用。