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D