examples of different ways in which the parallax principle has been applied. (C9-T2-P2, T14)
An account of a national policy initiative. (C9-T2-R1 T1)
What had to transfer from sea to land before any animals could migrate? (C9-T1-R3 T27)
Assumptions underlying the search for extra-terrestrial intelligence(C9-T1-R1 T14)
Michael Faraday was the first person to recognize Perkin’s ability as a student of chemistry. (C9-T1-R1 T1)
医疗与健康
传统文化
社会
娱乐