问题
选择题
Some researchers believe that there is no doubt____a cure for AIDS will be found. [ ]
A. which
B. that
C. what
D. whether
答案
答案：B
搜题请搜索小程序“爱下问搜题”
Some researchers believe that there is no doubt____a cure for AIDS will be found. [ ]
A. which
B. that
C. what
D. whether
答案：B