Mary Anning (1799-1847) was a British fossil hunter who began finding【21】as a child, and soon supported herself and her very【22】family by finding and selling fossils. Very【23】is known about her life, but her father was a cabinet maker and he also【24】local fossils.
Mary【25】on the southern coast of England, in a town called Lyme Regis. Its famous【26】by the sea contain【27】fossil layers that【28】from the Triassic, Jurassic and Cretaceous periods (the【29】of the dinosaurs, other bizarre reptiles, large insects, sea creatures,【30】mammals, and【31】life forms).
Mary Anning【32】and prepared the first fossilized plesiosaur (an ocean-dwelling reptile) and the first Ichthyosaurus (an ocean-dwelling reptile that【33】like a dolphin). She found many other important fossils, including Pterodactylus (a flying reptile), sharks (and other fish), and so on.【34】with her brother Joseph, Mary supplied prepared fossil specimens to【35】museums, scientists, and private collections.
(41)
A.cliffs
B.dinosaurs
C.fossils
D.museums
第3题
正常情况下,衰老红细胞主要在以下哪个器官被清除()
A.肝脏
B.骨髓
C.肾脏
D.脾脏
E.血管
第4题
成人在正常情况下,产生红细胞、粒细胞和血小板的唯一器官是()
A.肝脏
B.脾脏
C.淋巴结
D.骨髓
E.肾脏
第6题
正常情况下,成人唯一能生成红细胞、粒细胞和血小板的场所是
A.骨髓
B.肝脏
C.脾脏
D.淋巴结
E.脑
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