GMAT 考满分题库

- 语法SC -
Since the 1930's aircraft manufacturers have tried to build airplanes with frictionless wings, shaped so smoothly and perfectly that the air passing over them would not become turbulent.
显示答案
正确答案: B

讨论题目 或 发起提问

|

题目讨论

  • 按热度
  • 按顺序

最新提问

Get Microsoft Silverlight
查词 | 笔记