空气压缩机是将机械能转变成（）的一种气压传动装置。
参考答案：压力能
He _____ his father, and he is good at _____ basketball. [ ]
A. like, playing
B. looks like, play
C. likes, playing the
D. is like, playing
全面质量管理中，PDCA循环的步骤是下列次序中的（）。
A.实施—检查—计划—总结
B.计划—实施—检查—总结
C.检查—实施—总结—计划
