18.②19.③20.①21.⑤22.⑤23.③24.④25.⑤26.④27.④28.②29.⑤30.④31.⑤32.②33.②34.④35.⑤36.②37.③38.④39.①40.②41.③42.②43.④44.⑤45.⑤
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