四六级考试

【单选题】 The fourth paragraph of the passage primarily discusses ______.
A．the reproduction of sea cucumbers
B．the food sources of sea cucumbers
C．the eating habits of sea cucumbers
D．threats to sea cucumbers' existence

网考网参考答案：C
网考网解析：
通过阅读第四段可知作者都是讲述海参的进食习惯，故选项C为正确答案。 查看试题解析出处>>