we want to make sure they have got __necessary__to succeed in the task.
1a few\knowledge
2a\knowledge
3many\knowledges
4the\knowledge
5those\knowledges
这道题选什么啊,为什么
人气：243 ℃ 时间：2019-11-07 07:34:42
解答
4the\knowledge 这里是特指,我们希望确定 他们已经掌握能成功做成这件任务的必要知识.
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