These plans must be （ ） if they're to be used successfully. ( 章节：4 难度：4)
- A、changed greatly
- B、modified
- C、changed completely
- D、changed slightly
正确答案:B
答案解析:有
微信扫一扫手机做题
做题室题库
做题室题库
These plans must be （ ） if they're to be used successfully. ( 章节：4 难度：4)
微信扫一扫手机做题