上学期期末,笔者所在城市的一次高一年级物理调研试卷中有这样一道单选题:把调准的摆钟,由西宁移至上海,这个钟 A.变慢了,要使它变准应该增加摆长 B.变快了,要使它变准应该增加摆长 C.变慢了,要使它变准应该减短摆长 D.变快了,要使它变准应该减短摆长 参考答案及评分标准中给出本题的正确 At the end of the last semester, there was a single-choice question in a high-grade physics research paper in the author’s city. The clock was changed from Xining to Shanghai. The clock A. became slower. Increase the pendulum length B. Become faster, to make it more accurate It should increase the pendulum length C. Become slower, to make it more accurate It should shorten the pendulum length D. Faster, to make it more accurate It should reduce the pendulum length Refer to the answer and the scoring standard gives the correctness of this question