问题 单项选择题

垫铁放置应符合以下要求:承受主要负荷的垫铁组,应使用()。

A、平垫铁

B、成对斜垫铁

C、成对开口垫铁

D、斜垫铁

答案

参考答案:B

解析:承受主要负荷的垫铁组,应使用成对斜垫铁,找平后用点焊焊牢;承受主要负荷且在设备运行时产生较强连续振动时,垫铁组不能采用斜垫铁,只能采用平垫铁。

阅读理解

One morning Mrs Petty said to her husband, “Jack, there’s a meeting of our Ladies Club at Mrs Young’s house at lunchtime today, and I want to go there. I’ll leave you some food for your lunch. Is that all right?

“Oh, yes.” her husband answered, “That’s quite all right. What are you going to leave for my lunch?”

“This tin of fish.” Mrs Petty said, “And there are some eggs and vegetables and some bread here, too.”

“Good.” said Mr Petty. Then Mrs Petty went to her meetings. All the ladies had lunch at Mrs Young’s house and at 3 o’clock Mrs Petty came home.

“Was your fish nice, Jack?” She asked.

“Yes, but my feet are hurting.” He answered.

“Why are they hurting?” Mrs Petty asked.

“Well, on the tin was written ---OPEN THE TIN AND STAND IN HOT WATER FOR FIVE MINUTES.”

小题1:Mrs Petty wanted to ________.

A.visit her old friends

B.go to Mrs Young’s house

C.have a dinner in the restaurant

D.have lunch by herself.小题2:Mr Petty had to _____ .

A.buy some food himself

B.cook dinner for Mrs Petty

C.have lunch at a restaurant

D.have lunch by himself at home小题3:Mrs Petty had her lunch   __   .

A.at home

B.with her husband

C.in Mrs Young’s house

D.in Jack’s house小题4:Mr Petty’s feet were hurting because ________.

A.the tin of fish hurt his feet.

B.he fell down and hurt his feet.

C.he himself stood in hot water for 5 minutes.

D.his wife didn’t tell him how to open the tin.小题5:In the last sentence, “STAND” means ________.

A.put

B.push

C.send

D.sink (浸)

判断题