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Although he failed this time, he didn't give up and ______ studying hard.
11个月前
某公司只生产一种产品,2018年销售收入为1000万元。营业利润为100万元,变动成本率为60%。
1年前
分解因式(a+b)²-4(a+b)c+4c²=______.
1年前
一只兔子体重2千克,一条鲸鱼体重34吨.兔子和鲸鱼体重的比是1﹕17.______.
1年前
The best times to visit Shangri-la are spring and autumn ___ the temperature is at its mildest.
1年前