题目内容：
下列物质：①丁烷 ②2-甲基丙烷 ③戊烷 ④2-甲基丁烷 ⑤2,2-二甲基丙烷，按沸点由高到低的顺序排列正确的是
A①＞②＞③＞④＞⑤
B⑤＞④＞③＞②＞①
C③＞④＞⑤＞①＞②
D②＞①＞⑤＞④＞③
答案解析：
单选题：下列物质：①丁烷②2
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