题干
— Could you help me _____ these books to the classroom?
— No problem. Let's go.
A：taking
B：not take
C：take
D：takes
答案(点此获取答案解析）
C
— Could you help me _____ these books to the classroom?
— No problem. Let's go.
A：taking
B：not take
C：take
D：takes
中，D是BC边上任意一点（D与B，C不重合），且
，则