挑战习题
1/5单选题
难度:

1.

This tall building has _________ floors. And Tony lives on the ________floor.


A

twelve, twelve

B

twelfth, twelfth

C

twelfth, twelve

D

twelve, twelfth

提示1:
PHA+5Y+l5oSP77ya6L+Z5Liq6auY5qW85pyJMTLlsYLvvIxUb2555L2P5Zyo56ysMTLlsYLjgII8L3A+
正确答案:RA==
PHA+56ys5LiA5Liq56m65aGr5Z+65pWw6K+N77yM56ys5LqM5Liq56m65aGr5bqP5pWw6K+N77yM6ZyA6KaB5rOo5oSPdHdlbHZl55qE4oCcdmXopoHnlKhm5pu/4oCd77yM5Y+Y5oiQdHdlbGZ0aOOAgjxicj48L3A+