What changed from 1968 to 1996？A．Publicity.B．Information.C．Communication.D．The average sou

The sky slowly changed from blue to red.（英译中)

What distinguishes the end－Permian mass extinction from other similar devastations？A．Chang

What do we learn about deserts from this text？A．Deserts can change into green and fertile

What can we infer from the passage？A．The main purpose for the school"s name change is to a

What conclusion might be drawn about current models on malaria and climate change from the

What distinguishes the end-Permian mass extinction from other similar devastations?A.Chang