问题 多项选择题

下列有关室外消火栓栓体安装的说法,错误的有()。

A.消火栓安装位于人行道沿上1.0m处,采用钢制双盘短管调整高度,不做防腐处理

B.室外地上式消火栓安装时,立管应垂直、稳固,控制阀门井距消火栓不应超过2.5m

C.室外地下式消火栓应安装在消火栓井内,消火栓井一般用MU17.5红砖、M17.5水泥砂浆砌筑

D.冬季室外温度低于-25℃的地区,地下消火栓井口需做保温处理

E.安装室外地上式消火栓时,其放水口应用粒径为20~30mm的卵石做渗水层

答案

参考答案:A, C, D

解析:消火栓安装位于人行道沿上1.0m处,采用钢制双盘短管调整高度,做内外防腐,故A项错误;室外地下式消火栓应安装在消火栓井内,消火栓井一般用MU7.5红砖、M7.5水泥砂浆砌筑,故C项错误;冬季室外温度低于-20℃的地区,地下消火栓井口需做保温处理,故D项错误。

改错题

第二节:短文改错(共10小题,每题1.5分,满分15分)

此题要求改正所给段文中的错误。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出一个勾(√ );如有错误(每行只有一个错误),则按下列情况改正:

该行多一个词: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。

该行缺一个词;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。

该行错一个词:在错的词下划一横线,在该行右边横线上写出改正后的词。

My classmates and I worked as volunteer in Beijing                76.________

Paralympics in September 13 . Early in the morning at 7:20 ,            77.________

we gathered at the National Stadium , namely the Bird’s Nest.        78._______      

As soon as we got into it ten minutes late ,we started to do           79.________            

some cleaning . From 9:00 am to 4:00 pm , we tried our best help         80.________      

the disabled athletes to get ready for their competitions , leading the   81.________   

audience to their seats and keep order .It was until 12:00 that we      82.________ 

had lunch and took a rest ,which last about an hour . We stopped           83.________ 

working at 4:00 .Though it was a tired job , We felt                84.________   

that it an honor to serve the disabled friends from all over the world.  85.________

选择题