With all that choice available, it became apparently that there would not be a single system
       A                                  B                    C                                                                     D
 that would be perfect for me.
          

A、A
B、B
C、C
D、D
With all that choice available, it became apparently that t - Mid-term exam - 大学英语Ⅰ(第三次开课) - 重庆高校在线开放课程平台 | 大学网课搜题引擎