【正确答案】 C

【答案解析】[听力原文]
   W: Hey, Sam! You should take a look at this article about Canadian scorpions.
   M: I didn't know there were scorpions in Canada. I thought they only lived in deserts.
   W: Well, the deadly kinds do. Like in Arizona and New Mexico.
   M: I thought all scorpions were dangerous.
   W: No, only about 25 kinds are deadly to humans. Actually there are over 1,500 different species. But only one lives in Canada.
   M: Where in Canada? Not around here?
   W: Well, mostly Saskatchewan and Alberta. But yeah, right here in British Columbia too.
   M: Is the Canadian kind poisonous?
   W: Not for humans. Supposedly their sting is no worse than a bee's. Anyway scorpions are all over the place. They can live in just about any climate. In fact the only continent where they don't live is Antarctica.
   M: Why? Is it too cold there?
   W: There must be other reasons.
   M: Do tell me. My curiosity is aroused.
   W: OK. According to this article, scorpions can withstand conditions that'd probably kill most other animals. Scientists did all these experiments, like the scorpion was frozen in a block of ice for 3 weeks and when they melted the ice, it just walked away.
   M: It was still alive?
   W: Yeah. But what's most amazing is that they also survived radiation levels 200 times higher than would kill a human. No wonder they've outlived the dinosaurs.
   M: Listen. I've got to run. But I'd really like a copy of that article.
   W: No problem. I'll make one for you.
   M: Thank you.
   How did the woman learn about the scorpions in Canada?
①选项均以From开头，因此推断题目问来源。②女士在对话一开始就开门见山地说：“你应该看一下这篇关于加拿大蝎子的文章。”故C正确。
   虽然所有选项都没有在对话中出现，不过根据对话中女士说的关键词article“文章”，答案应与文字资料相关。注意B中的documentary表示“记录片”，而非document“文献”，不属于article的范畴。