题目内容
The teacher set such a difficult problem ________none of us could solve.
| A．that | B．so that | C．which | D．as |
D
解析
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培优三好生系列答案优化作业上海科技文献出版社系列答案题目内容
The teacher set such a difficult problem ________none of us could solve.
| A．that | B．so that | C．which | D．as |
D
解析
培优三好生系列答案优化作业上海科技文献出版社系列答案