问题
选择题
Not a single song _____ at yesterday's party. [ ]
A. she sang
B. sang she
C. did she sing
D. she did sing
答案
答案：C
搜题请搜索小程序“爱下问搜题”
Not a single song _____ at yesterday's party. [ ]
A. she sang
B. sang she
C. did she sing
D. she did sing
答案：C
，这种有机物不可能具有的性质是（ ）