问题
选择题
My schedule is quite . I could arrange to meet with you any day next week. [ ]
A. complicated
B. busy
C. flexible
D. tight
答案
答案：C
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My schedule is quite . I could arrange to meet with you any day next week. [ ]
A. complicated
B. busy
C. flexible
D. tight
答案：C
的同分异构体中同时符合下列条件的芳香族化合物共有__________种。