这家企业改革的任务，（）是“减员”，更重要的是“增效”。
A：不止
B：不只
C：不仅
D：不光
参考答案：B
Not until _____ ten _____ to school.
A．was he; he went
B．was he; did he go
C．he was; he went
D．he was; did he go
配线电缆的使用年限为（）年左右。
A.5
B.8
C.10
D.12
