按照建设部第107号令，采用工料单价法进行计价的计算基础不包括( )。
A．人工费和材料费
B．人工费和机械费
C．人工费
D．直接费
参考答案：A
She went to the supermarket and ______ what she needed, she returned home, light-hearted.
A．bought
B．having bought
C．buying
D．to have bought
重锤夯实法
