问题
选择题
I can't say which wine is best-it's a(n)________of personal taste. [ ]
A. affair
B. event
C. matter
D. variety
答案
答案：C
搜题请搜索小程序“爱下问搜题”
I can't say which wine is best-it's a(n)________of personal taste. [ ]
A. affair
B. event
C. matter
D. variety
答案：C
的收敛半径为______．