当架空电力线路与标准轨距铁路、高速公路和一级公路交叉，且架空电力线路的档距超过200M时，最大弧垂应按导线温度为（）计算。

A.+20℃

B.+40℃

C.+70℃

D.+90℃

补全对话。

Kate: Jim, do you know when Father’s Day is? 1              , but I’m not

sure.

Jim: Yeah, that’s right. It’s next Tuesday. 2.                    ?

Kate: Yes, but I’m not sure what to buy for him. 3                    ?

Jim: What about a football T-shirt? I’m sure he’ll be pleased if you buy

him a Liverpool football T-shirt!

Kate: 4              . He isn’t interested in football.

Jim: OK. What about a book? I’m sure he’ll like a book!

Kate: Hmm, I’m not sure if that’s good idea. I think I will talk about it to Mum. 5          .