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  • 科目:英语
  • 题型:单选题
  • 难度:较易
  • 人气:1115

It is said that bad living habits as well as dirty surroundings, stuffy rooms and some other factors ________ the wide spread of H1N1.



A.result from
B.benefit from
C.devote to
D.contribute to
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Itissaidthatbadlivinghabitsasw