问题 多项选择题

按《公路桥涵地基与基础设计规范》(JTJ 024—85),当新近堆积黄土为湿陷性黄土地基时,经人工处理后,其容许承载力可按下列系数提高,其中正确的是( )。

A.人工夯实可提高1.5

B.换土夯实可提高1.3

C.重锤夯实可提高2.0

D.打石灰砂桩可提高3.0

答案

参考答案:B,C

解析:据《公路桥涵地基与基础设计规范》(JTJ 024—85)2.1.2条表2.1.2-8。

选择题
改错题
短文改错
        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,在该行下边横线上写出该词,并也用斜线划掉。
       此行缺一个词:在缺词处加一个漏字符号,在该行下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,在该行下边横线上写出改正后的词。
       注意:原行没有错的不要改。
     Thanks very much on inviting me to your birthday  
party on Sunday. I'd like very much come but 
I will have an examination on Monday morning. It was  
a very important exam but I can't afford to    
fail it. I'll spend  the whole weekend read 
and prepare for it. So I'm really sorry that
I won't be able to come in this time. Hope you 
can understand. I’ll took this chance to wish    
you wonderful time on your birthday. Happy 
birthday, Peter, and much happy returns of the day!  
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