In this article, the contrastive teaching way in terms of cultural background, phon etic system, pronunciation and intonation is discussed.
介绍了通过英美文化背景、标音体系、发音、语调等多方面的对比进行英语语音教学的方法要领。
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Bacteria such as Citrobacter sp. harboring phoN, a gene encoding a nonspecific acid phosphatase, have been reported to precipitate heavy metals efficiently.
Increasing the thick-ness of porous layer suitably was of benefit to boiling heat transfer. The coefficient of boiling heat transfer decreased as the height of thermal si-phon...