屈曲型肱骨髁上骨折断端典型的移位方向是（） A.近折端向后下移位，远折端向前移位 B

若数列{an}满足：a1= 1 3 ，且对任意正整数m，n都有am+n=am•an，则 lim n→+∞ （a1+a2+…+an）=（　　） A． 1 2 B． 2 3 C． 3 2 D．2

“三个代表”重要思想的根本出发点和落脚点是

A．坚持党的先进性

B．坚持党的阶级性

C．增强党的阶级基础，扩大党的群众基础

D．代表最广大人民的根本利益

将河流与其特征连线

（1）珠江                                      A．我国最大的河流

（2）长江                                      B．世界含沙量最大的河流

（3）黄河                                      C．我国结冰期最长的河流

（4）黑龙江                                    D．我国汛期最长的河流．

管路特性曲线

Part 1

☆ You are to work with a U.S. company by a year. You have finally obtained your visa from the US Embassy in Beijing, and are ready to leave for Minneapolis, USA, where the company is headquartered. Read the following memo with information jotted down from your air-ticket:
☆ From Beijing to Minneapolis.
☆ The American Northwest Airline.
☆ NW745, Monday, November 27, 2002, Beijing time.
☆ Arrive at 1:30 p.m. Nov. 28, American time.