15平衡运输问题即是指m个供应地的总供应量 n个需求地的总需求量。
A. 大于
B. 大于等于
C. 小于
D. 等于
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1. The author used to be a football player.
A. 对
B. 错
2. The author is eager to study and popularize Chinese Martial Arts.
A. 对
B. 错
3. Unfortunately, the author has not realized the underlying meaning of Chinese Martial Arts.
A. 对
B. 错
4. Not many American people are willing to spend their free time learning Chinese martial arts.
A. 对
B. 错