题文
Since he downloaded a virus ________ into his computer, he can’t open the file now.
| A.by design |
| B.by accident |
| C.on purpose |
| D.by mistake |
推荐试卷
Since he downloaded a virus ________ into his computer, he can’t open the file now.
| A.by design |
| B.by accident |
| C.on purpose |
| D.by mistake |
试题篮
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