根據下列的C++語言程式碼，請問輸出結果為何？ ```cpp #include <iostream> using namespace std; class CAnimal { public: void Show() { cout << " animal"; } }; class CMonkey : public CAnimal { public: void Show() { cout << " monkey"; } }; class CTiger : public CAnimal { public: virtual void Show() { cout << " tiger"; } }; int main() { CAnimal animal; CMonkey monkey; CTiger tiger; CAnimal* pAnimal[3] = { &animal, &monkey, &tiger}; for (int i=0; i<3; i++) pAnimal[i]->Show(); return 0; } ```