欢迎来到在线考试题库网 在线考试题库官网
logo

单项选择题

    A. To find out how much air can be pumped into a plane.
    B. To find out how much air passengers need to breathe at certain altitudes.
    C. To find what would happen if the plane crashed in the water.
    D. To find out if there are any weak parts in the plane that would burst under pressure.
点击查看答案&解析

相关考题

  • 单项选择题

    A. It would be a win-win situation for both of us if we set up an agency for marketing your products.
    B. We believe that marketing your products on your behalf in Shanghai would be rather costly in the beginning.
    C. It is our firm belief that we will bring a lot of benefit to your agency in Shanghai.
    D. We totally agree to market your products in Shanghai if your firm can set up an agency on our behalf.

微信小程序免费搜题
微信扫一扫,加关注免费搜题

微信扫一扫,加关注免费搜题