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【单选题】
Morton Graphics successfully bid on a job printing standard notebook covers during the year using last year’s price of $0.27 per cover. This amount was calculated from prior year costs, noting that no changes in any costs had occurred from the past year to the current year. At the end of the year, the company manager was shocked to discover that the company had suffered a loss. “How could this be?” she exclaimed. “We had no increases in cost and our price was the same as last year. Last year we had a healthy income.” What could explain the company’s loss in income this current year?A.
Their costs were all variable costs and the amount produced and sold increased.
B.
Their costs were mostly fixed costs and the amount produced this year was less than last year.
C.
They used a different cost object this year than the previous year.
D.
Their costs last year were actual costs but they used budgeted costs to make their bids.
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A.
该函数定义正确，但函数调用方式错误
B.
该函数调用方式正确，但函数定义错误
C.
该函数的定义和调用方式都是正确的
D.
该函数的定义和调用方式都是错误的
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【单选题】关于对下述程序的描述正确的是（ ）public static implicit operator Complex (int array){ return new Complex(array, 0);}
A.
将Complex类型转换为int型
B.
将int类型转换为Complex型
C.
完成运算符重载的功能
D.
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【单选题】关于对下述程序的描述正确的是( ) public static implicit operator Complex(int array) { return new Complex(array,0); }
A.
将Complex类型转换为int类型
B.
将int类型转换为Complex类型
C.
完成运算符重载的功能
D.
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【单选题】对下列程序段的描述正确的是( )。 #include＜iostream.h＞ int fun(int,int)； void main() { cout＜＜fun(1,2)＜＜endl； } int fun(int x,int y) { return x+y； }
A.
该函数定义正确，但函数调用方式错误
B.
该函数调用方式正确，但函数定义错误
C.
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D.
该函数定义和调用方式都错误
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B.
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C.
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D.
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