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- 1"函数就是非空数集到非空数集的映射"这句话对不对?
- 2.国学大师钱穆在《国史新论》中说“汉代宰相是首长制唐代宰相是委员制.”钱穆先生得出这一结论的最主要的历史依据是 A、唐代宰相数量增加 B、唐代宰相人数减少 C、汉代宰相位高
- 3He ______(take)many photos in Beijing
- 4(lnx)^2的导数是1/(x^2)还是2lnx/x?
- 5已知函数f(x)=ln(1/2+ax/2)+x-ax (a为常数,a>0)
- 6是Why not to do sth还是Why not do sth?
- 7谁可以帮我查一下"实至名归"这个成语的意思?
- 8we know it wery ____ (well ,much )
- 9--Do you like going horse riding? --No, I _________ never ________(ride) a horse.
- 10平面直角坐标系的问题~会的来(和基础知识有关)
- 11括号里应添什么:4.( )your teacher often leave the school very late?
- 12饮料七喜英文怎么说?
- 13请解释小学数的整除
- 14观察下列按规律排成的一列数:1/1,1/2,2/1,1/3,2/2,3/1,1/4,2/3,3/2,4/1,1/5,2/4,3/3,4/2,5/1,1/6
- 157n+19/2n+1为整数,则n=?
- 16《八阵图》 杜甫
- 171.当m_________时,式子-3m+5的值不大于二分之m .
- 18how much is this sum?
- 19What are you going to do this summer holiday?(保持原句意思)
- 20若函数f(x)=ax2+x+1在区间[-2,+∞)上为单调增函数,则实数a的取值范围是_.