材料一:近几年,我国的粮食丰收,但由于经济社会发展和人口增加,拉动粮食的增长,我国粮食供需缺口呈扩大趋势。专家推算,2030年我国将有16亿
Friends play a very important part in everyone’s life. Friendship usually develops during childhood. New friends are made when you progress through school. Those friends that you make as a student c
根据下面语言材料,运用对偶知识对出下联。(3分)春天时,湖水涨满,湖天一色,船行湖中,如行天上;秋日里,山色斑斓,山景如画,人游山中,
35.Fortunately we had a compass, without________we would have got lost. A. which B.it C. that D.what
在坐标平面内,有序实数对与平面内的点是_______对应的
已知函数f(x)=x3+bx2+4cx是奇函数,函数f(x)的图象在点(1,f(1))处切线的斜率为-6,且当x=2时,函数f(x)有极值.(Ⅰ)求b的值;(Ⅱ)求函数f(x)的解析式;(Ⅲ)求
根据要求默写(8分) (1)坐潭上,四面竹树环合, , 。 (2)杜甫《望岳》诗中状写泰山神奇秀