在平衡态下 , 理想气体分子速率区间 v 1 ~ v 2 内分子的平均速率是 答案1: 答案2: 答案3: 答案4: A. 答案1 B. 答案2 C. 答案3 D. 答案4
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【单选题】听力原文:W: How was your trip to the Grand Canyon? M: It was excellent! We spent five days hiking along the Colorado River and exploring the side canyons. It was great to get out of the city and back to n...
【单选题】听力原文:W: How was your trip to the Grand Canyon? M: It was excellent! We spent five days hiking along the Colorado River and exploring the side canyons. It was great to get out of the city and back to n...