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【单选题】
下列蛋白质中具有四级结构的是A.
胰岛素；
B.
细胞色素C；
C.
RNA酶；
D.
血红蛋白；
E.
肌红蛋白。
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【简答题】成本管理不再是仅强调成本的控制,而是着眼于企业( )的构建,具有竞争性和前瞻性。
【单选题】'Before, we were too black to be white. Now, we're too white to be black.' Hadija, one of South Africa's 3.5m Coloured (mixed race) people, sells lace curtains at a street market in a bleak township o...
A.
made all the families leave District Six so that a new Methodist church would be built there
B.
drove out all the residents in District Six so that a museum would be built there
C.
forced all the families to leave District Six so that the buildings there would be largely pulled down
D.
requested that all the residents leave District Six so that a street plan could be put forward
【单选题】The rods of our eyes see ______.
A.
colors
B.
black and white
C.
both colors and black and white
D.
visible wavelength colors
【简答题】A．Red, white and blue. B．Blue, black, brown and green. C．White, brown and black. D．Blonde, brown, black and red.
【简答题】A．red, white and blue. B．blue, black, brown and green. C．white, brown and black. D．blonde, brown, black and red.
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