问题
选择题
Each person's fingerprint is unique, ________ it an ideal identification tool. [ ]
A. to make
B. making
C. being made
D. made
答案
答案：B
搜题请搜索小程序“爱下问搜题”
Each person's fingerprint is unique, ________ it an ideal identification tool. [ ]
A. to make
B. making
C. being made
D. made
答案：B
