[問題]考古題form 16 題號40 (structure)

[joy1234]

還有一題

While studying the chemistry of human body, Dr. Rosalyn Yalow won a Nobel Prize for the research she conducted on the role of
hormones.

答案是B

請問要怎麼改?

謝謝大家

[agape0417]

of the human body or of human bodies

[Jessy]

名詞前冠詞是ETS很愛考的一個考點,
要細心喔~~