下面程序的执行结果为 #include' iostream' using namespace std; class A { int a; public: void Seta(int x) { a=x;} void Display_a( ) { cout < < a < < end1;} }; class B { int b; public: void Setb(int x) { b=x;} void D
A.
输出为2 2 3
B.
有错误在第5行
C.
输出为1 2 3
D.
有错误在第7行
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举一反三
【单选题】The real wage rate measures the
A.
quantity of goods and services that an hour of work will buy.
B.
average weekly earnings in dollars of a worker.
C.
dollar value of an hour of work.
D.
dollar value of what a worker could earn in another job.
【单选题】The government announces a tax increase on workers' wages to take effect in the future. What happens to current employment and the real wage rate?
A.
Both employment and the real wage rate would increase.
B.
Both employment and the real wage rate would decrease.
C.
Employment would increase and the real wage would decrease.
D.
Employment would decrease and the real wage would increase.