问题
选择题
Zhai Zhigang, LiuBoming and Jing Haipeng went into space on .
Their flight around the earth lasted about _____ hours. [ ]
A. September 24, 2008, 67
B. September 25, 2008, 68
C. Semtember 26, 2008, 69
D. September 27, 2008, 70
答案
答案：B