问题
选择题
It's important for the figures ________ regularly. [ ]
A. to be updated
B. to have been updated
C. to update
D. to have updated
答案
答案：A
搜题请搜索小程序“爱下问搜题”
It's important for the figures ________ regularly. [ ]
A. to be updated
B. to have been updated
C. to update
D. to have updated
答案：A