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- 1如图,已知AB/AD=BC/DE=AC/AE,求证:△ABD∽△ACE.
- 25 5 3 6这四个数怎样算,最后得数是24?
- 3As we know that there are many steps which can be taken to undo this problem
- 4请利用家庭生活用品做一个小实验来说明:物质是由微粒构成的,微粒是不断运动的且微粒之间有空隙.
- 5I ___ the book I wanted to find before I left the bookstore
- 6设R上的可导函数f(x)满足f(x+y)=f(x)+f(y)+4xy(x,y∈R),且f'(1)=2,则方程f'(x)=0的根为_.
- 7英文翻译:我出生在11月21日
- 8描写花美的句子(短一些)急!
- 9AB两地相距42千米,甲乙两人分别从AB两地同时同向而行乙在甲前,甲的速度是乙的1.2倍,若3小时后甲追上乙
- 10The woman on the left is not as _______(young)as the woman on the right.She's______(old).