The fifth _____ of China's home-built C919 passenger plane takes off for its first test flight from Shanghai Pudong International Airport in Shanghai, on Oct 24, 2019.
A.administrator
B.prototype
C.counterpart
D.forerunner
- · 有5位网友选择 D,占比55.56%
- · 有2位网友选择 C,占比22.22%
- · 有1位网友选择 A,占比11.11%
- · 有1位网友选择 B,占比11.11%