我国的陆地边境线长度是（）
A.2万多公里
B.3万多公里
C.4万多公里
D.5万多公里
参考答案：A
鲫鱼游泳时，控制游泳方向的是（ ）
A．胸鳍
B．背鳍
C．尾鳍
D．臀鳍
Which of the following statements regarding allocating trades is TRUE.9 It is permissible under the Standards to allocate trades:()
A. on a pro-rata basis over all suitable accounts.
B. based upon compensation arrangements.
C. based upon client relationships with the firm.
