共50条信息
下列各式中,哪些是整式\(?\)哪些是分式\(?\)
\(\dfrac{1}{2}\);\(\dfrac{1}{x-y} \);\(\dfrac{{x}^{2}+{y}^{2}}{{x}^{2}-y} \);\(\dfrac{2x}{3}\);\(\dfrac{2π}{x+y} \);\(π\);\(\dfrac{x}{{ }\!\!\pi\!\!{ }}\).
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