多级账簿可由经办网点维护费率时最多下浮比为（）。
A.50%
B.80%
C.100%
D.30%
参考答案：B
The Shanghai World Expo is intended to achieve our common goal, world that is safer, cleaner and healthier than one we’re living in.
A．the, the
B．a, /
C．a, the
D．the, /
圆柱体的两个底面上任何两点之间的连线都是高．______．（判断对错）
