问题 问答题 简答题

什么情况下须采取隔离式探放水?

答案

参考答案:

巷道掘进前方的水量大;

水头压力高;

煤层松软和裂隙发育时;

在煤巷直接探放水很不安全;

需要采取隔离式探放水。

填空题
改错题

短文改错(共10小题;每小题1.5分,满分15分)

此题要求改正所给短文中的错误.对标有题号的每一行作出判断:如无错误,在该行右

边横线上画一个勾(√);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。

Although all the students seem very happily at our school, as   

小题1:_________

far as we concerned, the buildings would be more beautiful         

小题2:________

if the school could be decorated. We students thought the school   

小题3:________

looks like a desert and the concrete walls like the grey sky in    

小题4:_________

a rainy day. We would be much happier and are able to study    

小题5:________

better if the walls of the school could be decorated with posters,

小题6:________

photos and paintings, that could certainly broaden our horizons    

小题7:_________

and enrich our lives. Original art work are too expensive, but     

小题8:_________

unless we buy art posters, the cost will be low. Using only a      

小题9:_________

little money, it can make our school a nicer place.                

小题10:________