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在下面程序下划线处填上适当内容,使程序执行结果为:200____100#include using namespace std;Template(1)T f(T x, T y){if (sizeof(T) == (2))return x + y;elsereturn x*y;}void main() {cout << f(10, 20) << "--" << (45.5, 54.5) << endl;}

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