22. (Error Correction )That program included the development of more accurate (A ) telescopes, together with(B ) theories required for their use in astronomy such as those provided(C ) adequate means for allowing(D ) for refraction of light in the earth’s atmosphere.
答案:登入後查看
統計: A(22), B(43), C(104), D(25), E(0) #571435
統計: A(22), B(43), C(104), D(25), E(0) #571435