问题 选择题

下列不是有机化合物所具有的基团的是

A.-OH

B.-CHO

C.-COOH

D.OH-

答案

答案:D

考查有机物的分类及官能团的知识

有机化合物含有的一般为中性基团,带电荷的OH-一般在无机物中,故选D

改错题

此题要求改正所给短文中的错误.对标题号的每一行做出判断:如无错误,在该行右边的横线上划(√);如有错误(每行只有一个错误),则按下列情况改正:

此行多一个词:把多余的词用斜线划掉,在该行右边横线上写出该词,并也用斜线划掉。

此行缺一个词:在缺词处加一个漏字符号(^),在该行右边横线上写出该加的词。

此行错一个词:在错的词下划一横线,在该行右边横线上写出改正后的词。

注意:原行没有错的不要改。

I still remember on the first day when I came to college.             小题1:      

It was a sunny day. Everything seems fresh to me. All the                小题2:   

students were exciting. I was, too. I had long dreamed                        小题3:   

of becoming a college student. Years late, my dream                           小题4:   

had come true. This was really turning point in my life. I                   小题5:   

looked at the beautiful classroom buildings. I felt proud for my           小题6:   

college. I knew that going to college would be a good chance              小题7:   

to get a great deal of knowledges, which would be useful                    小题8:   

for your future career. Meanwhile I knew that studying at college         小题9:  

was a great challenge to me. H had to learn what to overcome the        小题10:   

difficulties in my study and life at college.

单项选择题 案例分析题