tpo26 conversation2 - 英檢

請問一下
tpo26聽力的conversation 2第22題
D選項
The student should explain how bioluminescence benefits
vairous species of jellyfish differently 怎麼翻譯?

原文 proffesor 說:
"so you may want to look at a particular type of jellyfish
or several types that benefit from bioluminescence in the same way"

這不能解釋為D選項嗎？

還有
tpo26 lecture 3 第２３題

答案是(A)The orbits of comets

根據原文　professor 一開始說：
"Let’s continue our discussion now by talking about orbits,
especially those of the so-called periodic-orbit comets".

可以看出答案

但他整篇不是都在講哈雷彗星的特性嗎?
為什麼Ｂ選項不行?
(B)"Unique characteristics of a famous comet."


請大家幫我解答 謝謝~

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