汉代丝绸之路的起点是 ，终点是 。
长安；欧洲。
友元运算符。obj1＞obj2被C++编译器解释为( )。
A．operator＞(obj1,obj2)
B．＞(obj1，obj2)
C．obj2．operator＞(obj1)
D．obj1.operator＞(obj2)
This place is not big enough for Lucy’s birthday party. We should find a _______ one.
A．big
B．small
C．bigger
D．smaller
