It is said that his new book consists of nine chapters.
A：is made up of
B：is connected to
C：is covered with
c = 0
c = c + 1
c = c + 2
斯塔夫里阿诺斯在《全球通史》中写道：“直到1500年前后各种族集团之间才第一次有了直接的交往，他们才始终联系在一起。”把世界开始连成一个整体的事件是（ ）
