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英语
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He thought( )a little difficult to work out this maths problem
there /it/this/that
选词填空
人气：492 ℃ 时间：2019-08-26 06:54:12
解答
it
it 在这里做形式宾语
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To work out this maths problem is difficult.(同义句转换) __difficult __ work out this maths problem
It's difficult for him to work out this maths problem 同义句是什么 He开头
the maths problem is too difficult for me to work out还是to work it out
This maths problem is a bit difficult fot me to work out.
This Maths problem is difficult.I can't work it out.的同义句
解方程组：3x+2y+5z＝2x−2y−z＝64x+2y−7z＝30.．
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