The APU gearbox _____(起…的作用) an oil reservoir. which of the following phrases cann't fill in the blanks?
A.serves as
B.functions as
C.acts as
D.lead into
正确答案是D
The APU gearbox _____(起…的作用) an oil reservoir. which of the following phrases cann't fill in the blanks?
A.serves as
B.functions as
C.acts as
D.lead into
正确答案是D