问题
选择题
The Tiangong-1 was sent _______ September 29th, 2011. [ ]
A. in
B. on
C. at
D. with
答案
答案：B
搜题请搜索小程序“爱下问搜题”
The Tiangong-1 was sent _______ September 29th, 2011. [ ]
A. in
B. on
C. at
D. with
答案：B