题干
——What does your Chinese teacher look like?
——_________.
A：She likes reading
B：She's tall and thin
C：She's thirty
D：She's very good
答案(点此获取答案解析）
B
——What does your Chinese teacher look like?
——_________.
A：She likes reading
B：She's tall and thin
C：She's thirty
D：She's very good
中，
，则此数列的前13项之和等于( )
