项目完工后的试车和空转费用属于（）
A.项目直接成本
B.设备购置费
C.工程建设其他费用
D.项目间接成本
参考答案：A
Although you have learned much knowledge and a lot of theories, the problem is _______ can be put into practice.
A．what you have learned
B．how what you have learned
C．that what you have learned
D．how that you have learned
口算40×30，可以先算4×3，再在得数的末尾添（ ）个0，结果是（ ）。
