参考答案
1-10 CDBAC DDADB 11-20 ACCAC CBDCA 21-25 BDADB
26. ground breaking 27.quantify 28.concentation 29.Previous 30. a range of 31.obesity 32.lead to
33. at risk 34.fatigue 35.couples
36-45 LGIDO FBMJC 46-55 FCDBI EJKIH
56-65 DBCBA BACDC
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