请帮助看二道题

dnianbo

While studying the chemistry of human body, Dr. Rosalyn Yalow won Nobel Prize for the

research she conducted on the role of hormones.

答案说of human body错了. 但不知道错的语法点,是冠词吗?谢谢.

The main advertising media include direct mail, radio, television, magazines, and newspaper.

答案说newspaper错了,那应改成啥?如果是newspapers,radio也没用复数呀.

farsuccess

of human body-> of the human body  可数单数不能单独存在，另外，of前后的词，要定冠词

newspaper->newspapers  你的问题挺好，希望有人解答！