如果贷款利率高于内部收益率，项目投资就会亏损。( )
参考答案：对
—I must be off now , or it will be too late to see Tom .
— ? Do you really want to see that dull boy ?
A．So what
B．For him
C．Why so
D．For what
定轴轮系中任意从动齿轮的转速计算公式为
