下载APP
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】()产出的古动物化石主要包括晚渐新世的巨犀动物群、中中新世的铲齿象动物群、晚中新世的三趾马动物群和早更新世的真马动物群,尤其以三趾马动物群最为丰富。
A.
热河生物群
B.
山东山旺生物群
C.
甘肃和政动物群
D.
贵州关岭动物群
E.
云南澄江动物群
【单选题】我国首次发现的中新世鸟类，也是我国第一次发现的完整鸟化石，填补了我国第三纪鸟类化石空白的是（ ）
A.
秀丽杨氏鸟
B.
山旺山东鸟
C.
硕大临朐鸟
D.
硅藻中华河鸭
【单选题】Passage One The climate of earth has fluctuated quite a bit over the last 4.6 billion years of our planet’s history and it can be expected that the climate will continue to change. One o...
A.
The climate of earth has fluctuated quite a hit over the last 4.6 billion years.
B.
An increase in the earth’s temperature will have major consequences for all life on this planet.
C.
The information we have got makes us unable to explain the global warming completely.
D.
The Pleistocene began about 1.8 million years ago.