来自郭武的问题
【________wheelisthoughttobe________firstinventionof________transportation.A.The;the;不填B.The;a;theC.A;the;aD.A;a;不填】
________wheelisthoughttobe________firstinventionof________transportation.
A.The;the;不填
B.The;a;the
C.A;the;a
D.A;a;不填
