• 2022-06-06
    As mentioned in the last paragraph,a wind tunnel can be used to find out____.
    A: how fast a plane can rise
    B: how smooth a plane’s surface is
    C: how a plane lands in a strong wind
    D: how a plane drops at a low height
  • A

    内容

    • 0

      According to the algorithm mentioned in the video, how many triangles can be composed using 10 points on a plane?<br/>根据上面的算法,平面上10个点将会构成多少个三角形? <br/>______

    • 1

      It hasn’t been announced ______ the plane is to take off. A: where B: when C: how D: why

    • 2

      Let's go to Paris _____________. A: by plane B: by a plane C: a plane D: by the plane

    • 3

      “Board the plane” means _________. A: go out of the plane B: leave the plane C: enter the plane D: run away

    • 4

      2. On the plane, which members of crew can talk to each other? Can they communicate with anyone outside the plane?