Question 2
A、 It could add to greenhouse emissions.
B、 It could disrupt the food chains there.
C、 It could pose a threat to other marine species.
D、 It could badly pollute the surrounding waters.
What is the environmentalists’ concern about the spread of Devil Firefish in the Mediterranean? 新闻结尾提到,环保人士担心,它（恶魔火鱼)的到来会危及其他种类的海洋生物。因此选项C的说法与新闻内容一致,故为正确答案。其余三项在新闻中并未提及,故排除。