位于核心区域的附件齿轮箱的缺点是（）.
A.发动机的迎风面积小
B.附件处于热的工作环境
C.保持发动机的流线形
D.充分利用空间
参考答案：B
Throughout the year over two million people are expected to directly ___ Japan 2005,a series of festivals and performances taking place around the country.
A．visit
B．participate in
C．involve
D．come to
可以激活EXCEL菜单栏的功能键是F1。
