单项选择题
F[x]中，n次多项式（n＞0)在F中有几个根？A.至多n个B.至少n个C.有且只有n个D.至多n-1个
单项选择题F[x]中，n次多项式（n＞0)在F中有几个根？
Pride and Prejudice was published _______________.A、mor...
单项选择题Pride and Prejudice was published _______________.
London quickly became a flourishing port.A. succes...Lo...
单项选择题London quickly became a flourishing port.A. succes...
