承包人应进行检验，并稽查建设工厂所需的一切设备，机械和材料，其中包括各种零件。Contractorshallperformthe___________ofallequipment,machineryormaterialsincludingthesparepartsrequiredfortheconstructionoftheplant.
A
execution and examination
B
examination or execution
C
examination and checking
D
examination and testing
