题文
If one of the computers ___, the whole networks would be unable to work.
| A.broke up |
| B.broke down |
| C.shut off |
| D.cut down |
推荐试卷
If one of the computers ___, the whole networks would be unable to work.
| A.broke up |
| B.broke down |
| C.shut off |
| D.cut down |
试题篮
()