单选题The word “they” underlined in Paragraph 1 refers to ______.AorganismsBfishCtoxinsDflesh
单选题
The word “they” underlined in Paragraph 1 refers to ______.
A
organisms
B
fish
C
toxins
D
flesh
参考解析
解析：
指代题。第一段首句指出microscopic organisms会以一种不知名的毒素麻痹鱼类，然后把鱼吃掉。该句意为“他们也许会使人类得病”。可知microscopic organisms对鱼类和人都会造成危害，因此此处的they指的即是前面的microscopic organisms。
指代题。第一段首句指出microscopic organisms会以一种不知名的毒素麻痹鱼类，然后把鱼吃掉。该句意为“他们也许会使人类得病”。可知microscopic organisms对鱼类和人都会造成危害，因此此处的they指的即是前面的microscopic organisms。
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