持之以恒,坚持不懈 坚定不移,始终如一
有始有终,锲而不舍
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- 1Be careful and________ make a mistake in your homework
- 2英语have to和must的区别
- 3英语翻译
- 4open 现在分词
- 5Such a noise did they make that the neighbors could not go to sleep at night.
- 6What kind of TV shows did you watch _____ the weekend?（用适当的介词填空）
- 7计算：y/(x的平方-xy)+2/(y-x)-x/(y的平方-xy)
- 8证明:在区间[2,5]上,函数f(x)=-2x平方=3x-1是减少的.
- 9一个角的补角加上30度等于这个角的余角的3倍求这个角
- 10When he was five years old he began to play the violin 同义句