问题
选择题
In the central part of Asia, horses are used to _____ goods. [ ]
A. carry
B. carrying
C. carried
D. be carried
答案
答案：A
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In the central part of Asia, horses are used to _____ goods. [ ]
A. carry
B. carrying
C. carried
D. be carried
答案：A
2cm。相邻两个计数点间有四个点未画出，则运动物体的加速度a= m／s。，打B点时运动物体的速度为 m／s，打A点时物体的速度为 m／s。