题目

设在平直公路上以一般速度行驶的自行车,所受阻力约为车、人总重的0.02倍,则骑车人的功率最接近于(    ) A.10-1kW            B.10-3kW           C.1kW          D.10kW 答案:A Many buildings in the city need repairing, but the one ____ first is the library.A. repaired B. being repairedC. repairing D. to be repaired
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