WEBVTT 00:00:01.972 --> 00:00:04.389 ♪ [音乐] ♪ 需求曲线移动 00:00:12.467 --> 00:00:14.390 - [Tyler] 在以前的视频中 00:00:14.390 --> 00:00:16.560 我们已经介绍了需求曲线的基础 00:00:16.560 --> 00:00:19.700 现在让我们讨论当需求曲线 00:00:20.000 --> 00:00:23.187 因市场需求增加或减少而移动时会发生什么 00:00:23.187 --> 00:00:26.100 00:00:26.700 --> 00:00:28.057 00:00:28.057 --> 00:00:31.600 00:00:32.400 --> 00:00:34.671 00:00:35.250 --> 00:00:38.100 00:00:38.400 --> 00:00:41.293 00:00:41.572 --> 00:00:44.991 00:00:44.991 --> 00:00:47.413 00:00:48.416 --> 00:00:52.200 00:00:53.500 --> 00:00:57.500 00:00:57.900 --> 00:00:59.221 00:00:59.221 --> 00:01:02.400 00:01:03.000 --> 00:01:05.303 00:01:05.303 --> 00:01:07.800 00:01:07.960 --> 00:01:10.100 00:01:10.300 --> 00:01:13.200 00:01:13.500 --> 00:01:15.628 00:01:15.628 --> 00:01:19.100 00:01:19.300 --> 00:01:20.992 00:01:20.992 --> 00:01:24.393 00:01:25.100 --> 00:01:27.500 00:01:27.500 --> 00:01:30.136 00:01:30.136 --> 00:01:32.148 00:01:32.148 --> 00:01:34.757 00:01:34.757 --> 00:01:38.273 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