单项选择题
The expedition reached the summit at 10:30 that morning（）
A．bottom of the mountain B．foot of the mountain C．top of the mountain D．starting point
单项选择题 We packed up the things we had accumulated (积累) over the last three years and left. （）
单项选择题 Since ancient times people have found various ways to preserve meat（）
单项选择题 It is the movement, not the color, of objects that excites the bull（）
