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【判断题】
爬行纲动物均为变温动物。（）
A.
正确
B.
错误
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【单选题】Cells cannot remain alive outside certain limits of temperature, and much narrower limits mark the boundaries of effective functioning. Enzyme(酶)systems of mammals and birds are most efficient only wi...
A.
body temperatures of various animals
B.
the newest research on measuring temperature
C.
methods of temperature reduction
D.
the classification of animals by temperature regulation
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【单选题】Cells cannot remain alive outside certain limits of temperature, and much narrower limits mark the boundaries of effective functioning. Enzyme(酶)systems of mammals and birds are most efficient only wi...
A.
body temperatures of various animals
B.
the newest research on measuring temperature
C.
methods of temperature reduction
D.
the classification of animals by temperature regulation
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