问题
单项选择题
Tourists can take()trips into space in the future.
A.long-week
B.week-long
C.long-weeks
D.weeks-long
答案
参考答案:B
Tourists can take()trips into space in the future.
A.long-week
B.week-long
C.long-weeks
D.weeks-long
参考答案:B