单选题
The fish that have developed long feelers use them to ______.
A、
recognize food particles
B、
collect food
C、
locate food by sense of smell
D、
both A and B
【正确答案】
D
【答案解析】
第二段提到long feelers that enable them to identify and collect stray bits of food，表明了触角的两种用途：一是确认食物，一是收集食物。
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