• 2022-06-07 问题

    ‌The landing gear consists of ( )and ( ).​ A: two main landing gears B: a nose landing gear C: shock-absorbing strut D: extension and retraction system

    ‌The landing gear consists of ( )and ( ).​ A: two main landing gears B: a nose landing gear C: shock-absorbing strut D: extension and retraction system

  • 1