问题
选择题
| This is the first plane ____ by Chinese engineers. |
A. designed B. designing C. to be designed D. being designed |
答案
答案：C
搜题请搜索小程序“爱下问搜题”
| This is the first plane ____ by Chinese engineers. |
A. designed B. designing C. to be designed D. being designed |
答案：C