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Although he failed this time, he didn't give up and ____ studying hard.
11个月前
句型转换。 There are different ways of doing this. There are ____________ ways of doing this.
1年前
Rosa likes music _____ is quiet and gentle. A. when B. that C. where D. who
1年前
某商品按定价的80%(八折)出售,仍能获得20%的利润,定价时期望的利润百分数是( )
1年前
三元一次方程 3x+4y+z=14 x+5y+2z=17 2x+2y-z=3
1年前