Question 11 is based on the passage you have just heard.

They were carried by the wind.

They had become more poisonous.

They were less than on the continent.

They poisoned some of the fulmars.

使用微信搜索喵呜刷题，轻松应对考试！

答案：

解析：

11. What does scientists previously noticed about the pollutants in the artic?

解析：A。本题目为细节题。问题为：关于北极圈污染物的情况，作者之前有什么样的发现？原文所在句：Previously, scientists noticed pollutants arriving in the Arctic with the wind.此前，科学家注意到北极圈的污染物来自风的传播。与选项A) They were carried by the wind与文中这一信息完全一致。此题目需要听到文章中的preciously（关键词），并与问题中的关键词匹配。同时，选项的关键词wind与原文一致。

创作类型：

原创

本文链接：Question 11 is based on the passage you have just

让学习像火箭一样快速，微信扫码，获取考试解析、体验刷题服务，开启你的学习加速器！