问题 多项选择题

对施工现场洞口的防护设施要求叙述正确的有()。

A.边长在150cm以上的洞口,必须设置一层用扣件扣接钢管而形成的网格栅,并在其上满铺竹笆或脚手板

B.边长为50~150cm的洞口,四周设防护栏杆,洞口下张设安全平网防护

C.下边沿至楼板或底面低于80cm的窗台等竖向洞口,如侧边落差大于2m时,应加设

I.2m高的临时护栏

D.楼板、屋面和平台等面上短边尺寸小于25cm但大于2.5cm的孔口,必须用坚实的盖板盖严,盖板要有防止挪动移位的固定措施

E.位于车辆行驶通道旁的洞口、深沟与管道坑、槽,所加盖板应能承受不小于当地额定卡车后轮有效承载力2倍的荷载

答案

参考答案:C, D, E

解析:本题考核的是洞口的防护设施要求。边长为50~150cm的洞口,必须设置一层用扣件扣接钢管而形成的网格,并在其上满铺竹笆或脚手板。也可采用贯穿于混凝土板内的钢筋构成防护网格,钢筋网格间距不得大于20cm。边长在150cm以上的洞口,四周设防护栏杆,洞口下张设安全平网。下边沿至楼板或底面低于80cm的窗台等竖向洞口,如侧边落差大于2m时,应加设1.2m高的临时护栏。楼板、屋面和平台等面上短边尺寸小于25cm但大于2.5cm的孔口,必须用坚实的盖板盖严,盖板要有防止挪动移位的固定措施。位于车辆行驶通道旁的洞口、深沟与管道坑、槽,所加盖板应能承受不小于当地额定卡车后轮有效承载力2倍的荷载。

阅读理解

A little boy invited his mother to attend his school’s first teacher-parent meeting. To the little boy’s dismay (沮丧), his mother said she would go. This would be the first time that his classmates and teachers met his mother and he was embarrassed by her appearance(出现). There was a severe (严重的) scar (伤疤) that covered nearly the whole right side of her face. The boy never wanted to talk about why or how she got the scar.

At the meeting, the people were impressed by the kindness of his mother with the scar, but the little boy was still embarrassed and hid himself from everyone. However, he could hear clearly the conversation between his mother and the teacher.

“How did you get the scar on your face?” the teacher asked.

The mother replied, “When my son was a baby, he was in a room that caught on fire. Everyone was too afraid to go in because the fire was out of control, but I went in. As I was running towards his bed, I saw a burning wood falling down and I placed myself over him trying to protect him. I was knocked to be unconscious (无知觉的), but luckily, a fireman came in and saved both of us.” She touched the burned side of her face. “This scar will be forever, but until today, I have never regretted doing what I did.”

When the little boy heard this, he couldn’t help running towards his mother with tears in his eyes. He hugged her and felt his mother was greater than anyone. He held her hand tightly for the rest of the day.

小题1:The underline world “embarrassed” means ______ in Chinese.

A.焦虑的

B.尴尬的

C.悲伤的

D.悔恨的小题2:In fact, the boy’s mother was ______.

A.beautiful

B.ugly

C.kind

D.ugly but kind小题3:We know from the passage that the little boy ______.

A.wasn’t moved by what her mother said

B.didn’t ask his mother to attend the meeting

C.wanted his mother to attend the meeting at first

D.didn’t really want his mother to attend the meeting at first小题4:After listening to his mother’s words about the scar, the boy might feel ______.

A.moved

B.unhappy

C.worried

D.dismay小题5:Which of the following is true?

A.The boy’s mother was brave but foolish

B.The boy hated what his mother had done

C.We should love our parents whatever they are like

D.The people at the meeting didn’t like the boy’s mother

单项选择题