用于塔径大，质量在300～700t的起吊工具是（）。A．单抱杆 B．_爱下问搜题

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问题单项选择题

用于塔径大，质量在300～700t的起吊工具是（）。

A．单抱杆

B．汽车起重机

C．双抱杆

D．履带起重机

答案

参考答案：C

填空题

从 I 栏中选出于II相应的答语。(5分)

I
46. Can I help you?
47. How was your weekend?
48.What do you think of gameshows?
49. Did you swim yesterday?
50. Can we wear hats in school?

II
A. Yes, I’d like a glass of beer.
B. It was OK.
C. I love them.
D. No, you can’t.
E. Yes, I did. It was great!

问答题简答题

对于存有残余油脂或可燃液体的容器进行火焊时应采取哪些措施？