单词:width of class interval
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AILSA CHANG, HOST: It's New Year's Day. Have you started your resolutions yet? Maybe if you're like me, you've got some diet and exercise goals after over indulging this holiday. Well, NPR's Patti Neighmond reports on the most popular workout trends
UNIT TWELVE [00:15.99]What letter is this?Picture 1. [00:23.54]What letter is this,Tony.It is B.Picture 2. [00:37.28]What number is this? It is eight.Picture 3. [00:51.15]What shape is this? It is a square.Picture 4. [01:03.87]What shape is this? It
Unit 12 Time After-Class Reading PASSAGE I Social Time: The Heartbeat of Culturem Proper Names Anglo adj. 盎格鲁的(Anglo-作形容词前缀,表示“与英国人有关的”。美国人中有许多
population 母体 sample 样本 census 普查 sampling 抽样 quantitative 量的 qualitative/categorical 质的 discrete 离散的 continuous 连续的 population parameters 母体参数 sample statistics 样本统计量 descriptive statistics 叙述统