Health Report - Dating Sites' Claims; Female Voices and Fertility 健康报道 - 女性月经周期期间不同时间点声音对男性吸引力不同 This is the VOA Special English Health Report. 这里是美国之音慢速英语健康报道。 As...
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Unit 10 When was it invented? [00:04.99]SECTION A [00:08.05]1b Listen and match the inventions and the dates. [01:25.19]2a Listen and number the inventions in the order that you hear them. [02:14.95]2b Listen again and match the items in columns A,B,...
by Jason Marshall In the last article, we learned that there are several ways to calculate the average value of a sample of data. We focused on one such method, the arithmetic mean, and used it to calculate the average number of potato chips in a bag...