单词：verbal operant conditioning
单词：verbal operant conditioning 相关文章
Pack rat. The name is synonymous with hoarding. And researchers have learned that pack rats can actually increase the range of foods theyre able to eat because of their collection of gut bacteria. Pack rats live in the American Southwest, where they
2014年Scientific American(七)月
An elderly woman decided to have her portrait painted. She told the the artist.... .....Paint me with diamond earrings, a diamond necklace, emerald bracelets(绿宝石手镯）, a ruby（红宝石） broach, and gold Rolex（劳力士手表）. But y
趣味英语
The price of oil has dropped around 20 percent in recent weeks, but remains more than double what it was just a couple of years ago. The high price has given oil companies the incentive to revisit old fields long ago abandoned as unprofitable. As VO
VOA标准英语2008年（八月）
HOUSTON, Sept. 7 (Xinhua) -- British oil giant BP announced Wednesday it had a major oil discovery in the Gulf of Mexico. An appraisal well the company drilled in a previously untested northern segment of the Mad Dog field in the Gulf of Mexico found
英语新闻
Saudi Arabia is signaling that it is going to boost its supply of oil on its own after failing to convince other oil producers to jointly agree to more production. Several news agencies reported Saturday that the Saudis could increase their oil produ
英语新闻
NEW YORK, July 13 (Xinhua) -- Crude prices rose on Friday as supplies tended to be tight on new Iran sanctions and production problems in North Sea. There was news on Thursday saying that the Obama administration expanded sanctions on Iran, in an eff
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