用两个圆形南瓜做杂交实验,子一代均为扁盘状南瓜。子一代自交,子二代出现扁盘状、圆形和长形三种南瓜,三者的比例为9:6:1,现对一扁盘状南
We spent a day in the country, picking wild flowers. With the car full of flowers we were going home. On our way back my wife noticed a cupboard (柜厨) outside a furniture shop. It was tall and n
江苏省是我国东部经济较发达的省份之一,区域内既有密切的联系又存在着明显的南北差异。阅读材料,回答下列问题。 材料一 下表为某年江苏省区
读某城市“城市人口占总人口比重变化图”和“劳动力在各行业中的百分比图”,回答 上图中,⑤→⑥反映的现象
江苏省经济发展水平南北差异较大,目前相对发达的苏南将部分产业向苏中、苏北转移。这既为接受地增加了发展动力,也为转出地产业升级腾出了空
There were few doctors, _____ he had to work very hard _____ his own. A. and; in B. because; at C. so; on D. when; for
“少年听雨歌楼上,红烛昏罗帐。壮年听雨客舟中,江阔云低断雁叫西风。而今听雨僧庐下,鬓已星星也。悲欢离合总无情,一任阶前点滴到天明。”
《最美好的时刻》(18分)一个春天的夜晚,我突然醒了,睁开眼睛,看见屋子里洒满了月光,四周静悄悄的,一点声音也没有。温暖的空气里充满了梨