阅读理解。读对话，完成下列内容。

Chen: What are you going to do after school?

Mike: I want to buy some books. Where is the bookstore?

Chen: It's next to the park. You can go by the No.9 bus. Get off at the cinema. The bookstore is on the right.

Mike: Thank you.

Chen: You're welcome.

1. 怎么才能到达书店？你来排一下顺序吧。

( ) Get on the No.9 bus.

( ) The bookstore is on the right.

( ) Get off at the cinema.

2. 判断正(√)误(×)。

( ) Mike wants to buy some books.

( ) The bookstore is far from the park.

( ) Mike goes there by bus.

( ) The bookstore is on the left.

( ) Mr Chen doesn't know how to get to the park.

某电炉子正常使用时，电炉丝的电阻约是50Ω，连接电炉的导线的电阻约是电炉丝电阻的千分之一．正常使用一段时间后，电炉丝热得发红，但连接电炉的导线却几乎不发热，是什么原因？