鸟儿将巢安在繁华嫩叶当中，高兴起来了，____________________，_____________________，跟轻风流水应和着。 （朱自清《春》）
《梦想合唱团》由8位明星召集8支梦想合唱团，通过合唱训练和竞赛，完成家乡的一个公益心愿。选手们用声音唱出了梦想的温度，用激情传递了坚持的
The authorities declared that because of the war petrol was _____ and had to be rationed (定量供应). A. inadequate B. rare C. lacked D. scarce
若有一组数据的总偏差平方和为100，相关指数为0.5，则其残差平方和为 ，回归平方和为 .
在人体体细胞增殖的一个细胞周期中，在纺锤体形成时，一个细胞中的染色体数为N、DNA含量为m；则当该细胞中染色单体消失时，此细胞中的染色体数和
We __________ in the same school since three years ago. A. study B. were studying C. will study D. have studied
有人说“宫中多少如花女，不嫁单于君不知”。下列对昭君出塞评述正确的是（ ） ①是汉初国力不强背景下的被迫和亲 ②是汉与匈奴和平友
When I was young I wanted to be a model，so when a national contest was staged，I convinced my parents to take me for an audition(试演). I was selected and told I had potential．They said tha
