第28695题 单选题
执行以下C++代码段后,变量res1和res2的实际值分别为?
int a = 7, b = 2;
double res1 = a / b;
double res2 = static_cast<double>(a) / b;
A

res1 = 3.0,res2 = 3.5

B

res1 = 3.5,res2 = 3.0

C

res1 = 3,res2 = 3

D

res1 = 3.5,res2 = 3.5

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