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解冻了,小河里流淌着欢乐的歌。这歌儿带着柳叶的清香,带着桃花的芬芳,带着白云的笑脸,慢慢的在哼唱,轻轻在低吟——哼唱这温暖的......

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晚上,暖风送来阵阵清香。我和妈妈坐在院子里赏月。月亮高高挂在天上,像盘子,像一面锣,也像一个大大的圆镜。妈妈告诉我,只要用心......

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请下载后查看，本文暂不支持在线获取查看简介。一滴两滴晶莹透亮我知道这是天公公给我的珍珠让大地替我收藏指导老师王洪吉 Please......

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早饭后,太阳挂在蓝天上,到处一片明媚。奶奶从屋里走出来,自言自语地说:“好啊,今天不下雨了,咱们可以收槐花了。每到这时候,就馋......

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一只小家猪,在山脚下被一户农人家养着,一日三餐不愁,过着舒坦的日子。一只小野猪,出来游玩,被农人捉到,和小家猪一块养了起来。小......

春风,吹绿了大地。田野里美丽又热闹。小草钻开地皮,睁开新奇的眼睛,和暖风说悄悄话。麦苗挺起翠绿的身子,忙着和阳光去编织一个丰......

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站在一幅幅远山叠嶂、云雾缭绕、林木扶疏、苍郁古松充满宁静和天籁的作品前,从心灵深处流淌出来的陌生而又熟悉的梦幻,将人引入神......

我的爸爸和妈妈有着两种截然不同的性格。妈妈是个急性子,不论遇到什么事,总爱说：＂快一点,快一点!＂而爸爸呢,总是喜欢说：＂别慌,慢慢来。......

爷爷退休后就搬回乡下养老了。奶奶劝他回城里的楼房住,他怎么都不肯,理由是：农村恬静,空气清新,最主要是他还有一块三十多年前就分......

灵灵是一只百灵鸟。　　雅雅是一只乌鸦。　　看，灵灵头上顶着漂亮的羽冠，圆锥状的嘴小巧可爱，长长的翅膀衬着彩色的尾巴，真是好看。灵......

本文利用单位矢量在有关度规系数加权下的某些微分关系式，给出了一种推导正交曲线坐标系中单位矢量导数的简便方法。......