问题
选择题
People have always been curious _____ how living things on the earth exactly began. [ ]
A. in
B. at
C. of
D. about
答案
答案：D
搜题请搜索小程序“爱下问搜题”
People have always been curious _____ how living things on the earth exactly began. [ ]
A. in
B. at
C. of
D. about
答案：D
