A. Many terrestrial life-forms died out. B. New life-forms on land developed at a rapid rate. C. The megafossils were destroyed by floods. D. Life began to develop in the ancient seas. 相关知识点: 试题来源: 解析 B 反馈 收藏 ...
According to the woman what happened 200 to 500 million years ago A.Some sea creatures developed vertebrae.B.The first giant squid was captured.C.Some sea creatures shed their shells.D.Sea life became more intelligent. 答案 C暂无解析相关推荐 1According to the woman what happened 200 to 500 ...
WHAT HAPPENED 65 MILLION YEARS AGO? (cover story)The article reports that Professor Lingham Soliar of the Paleontological Institute, Moscow, confirms of strong evidence for concluding that a group of marine reptiles, the gigantic mosasaurs, were in fact thriving just before they became suddenly ...
W: Juan in a Million, what can I do for you? M: Hi, This is Allan White speaking. I've made a reservation for 6:00 p.m. on Sunday. W: Let me check, please...Here it is. What's the matter? M: We...
A 语篇类型:说明文 主题语境:人与社会 词数:382 难度:★★★ (2022·江苏省南通中学高二阶段练习)Canyouimaginedigginginyouryardonedayand findingalife-sizedsoldiermadecompletelyofclay? That?swhathappenedseveraldecadesagowhen farmersinXi?an,China,werediggingwells. Archaeologists(考古学家)havesincefoundabout6,...
A. Their genes stopped their development as the environment got worse. B. Their genes became twice in number but they finally died off like dinosaurs. C. They experienced a great genetic change making them get used to worse conditions. D. They went through a similar development to peaches, ...
such as seed-eating rodents and ants.The effects of such competition are graphically demonstrated when all the animals or all the plants in an ecosystem come into competition, as happened 2 million years ago at the end of Pliocene, when North and South America became joined by the Isthmus of...
The government estimates that more than 7 million people hold a second job. For the first time, large numbers of people say they want to cut back on working hours even it means earning less money. But most employers are unwilling to let them do so. The government which has stepped back ...
happenedwhentheadultcoveredherownmouth: 11 childrensaidthattheycouldn?t 12 toher. Anumberof 13 ruledoutthatthechildren misunderstoodwhattheywerebeingasked.Theresultswereclear:Ouryoungsubjects 14 the questionsandknew 15 whatwasaskedofthem. Their 16 tothequestionsreflectedtheirtrue 17 that“Icanseeyouonlyif...
affects more countries. The big question today is, how can an expanding world population find food and space without destroying the land it lives on For many countries, battling the desert is the only chance to avoid starvation and disaster.According to Paragraph 1, what has happened in ...