辨认主题句：
Choose the best topic sentence from the four options below. Write the corresponding letter of your choice on the answer sheet.

A.Culture refers to the pattern of human activity.
B.Culture is the invisible bond which ties p

辨认主题句：
Choose the best topic sentence from the four options below. Write the corresponding letter of your choice on the answer sheet.

A.Culture refers to the pattern of human activity.
B.Culture is the invisible bond which ties people together.
C.Cultural differences create diversity as well as conflicts.
D.Culture is represented by the art, literature, language, and religion of a community.

B