A-A+
A．He is starting the course late.B．The subject
问题详情
A．He is starting the course late.
B．The subject is diffieun for him.
C．The professor is very reserved.
D．The book is difficult to read.
参考答案
正确答案：B
解析：先看题目，再有针对性的认真听。会话中提到"I didn't do that well in chemistry in high school"，由此可以做出正确的选择。
