A said B saying C says D say

A are compensated for B are at the expense of C are consumed with D are contaminated by

A Being lumped B Lumping C Lumped D Having lumped

A coincide B compensate C complement D consolidate

A Chinese paddlefish is one of the largest freshwater fish species and is unique to the Yangtze River in China. B The Yangtze sturgeon is considered as “extinct in the wild.”, and any trace of it is now uncaptured. C Chinese white sturgeon has been listed as China’s first-class national protected animal, which was last seen alive in 2003 D Siberian sturgeon, widely used in aquaculture, is also in enormous peril.

A Indigenous B Numerous C indifferent D Dangerous

A Water pollution. B Construction of the dam. C Overfishing D Climate change

A Cultivating human bred sturgeon. B Stocking wild sturgeon. C Banning illegal sale of sturgeon caviar. D Creating fish passages in water resources.

A All sturgeon species are now at severe risk of extinction, far more dire than before. B Most of the world’s remaining 26 sturgeon species are now endangered and some are even critically endangered. C IUCN announced 26 sturgeon species moved from endangered to extinct. D The wild Yangtze sturgeon is critically endangered according to the newly - updated Red list.

A 国家的社会主义工业化 B 消灭私有制 C 建设社会主义现代化国家 D 对农业、手工业和资本主义工商业的社会主义改造