托福考试

【单选题】
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The professor implies that the relationship between mosquitoes and humans has characteristics of which types of symbiosisAmensalism and commensalism.
B．Parasitism and commensalism.
Competition and mutualism.
D．Competition and parasitism.

网考网参考答案：D
网考网解析：
[解析] 推理题 讲座的后半部分提到，人类与蚊子的关系就是互害的竞争关系。接着，讲座中阐述了人类为蚊子提供了可以繁殖的环境，蚊子从人类获取了环境方面的利益，但人类却受蚊子的毒害。因此这一关系可以看作寄生关系。D项是正确答案。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>