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2012年05月21日 01时16分，《英语资源网:英语四级完形填空精选练习及详细解析(35)[1]》由出国留学网liuxue86.com英语编辑整理. Cloze 35 Dalton wondered why the heavier and lighter gases in the atmosphere did not separate as oil and water do.He finally concluded that the constituent 1 must exist in the form of 2 particles or atoms and that these 3 be completely mixed together in the 4 .This threw a new light in 5 laws of definite proportions.It was 6 necessary to suppose that the atoms 7 combinesintossmall groups of uniform 8 and so form more complex substance; 9 the mystery of this law ... [ 查看全文 ]英语资源网:英语四级完形填空精选练习及详细解析(35)[1]的相关文章
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2012年05月21日 12时04分，《2011英语:英语四级完形填空精选练习及详细解析(38)[1]》由出国留学网liuxue86.com英语编辑整理. Cloze 38 As the plane circled over the airport, everyone sensed that something was wrong. The plane was moving unst...[ 查看全文 ]
