5.Who first invented_______compass in China?A.the B.a C.不填D.one 5.Who first invented_______compass in China? A.the       B.a        C.不填      D.one 为什么

问题描述:

5.Who first invented_______compass in China?A.the B.a C.不填D.one
 5.Who first invented_______compass in China? A.the       B.a        C.不填      D.one 为什么

B

compass in China?A.the