单项选择题

We can conclude from this passage that number sense in animals appears to be ______.

A．restricted to about one dozen species or less
B．akin to a faculty possessed by men in all stages of development
C．present chiefly in winged creatures
D．related directly to preservation or offspring
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单项选择题
What new values should Americans adopt
A．Conservation and cooperation.
B．Cooperation and competition
C．The need for jobs.
D．The freedom of the individual.
单项选择题
The author feels that the number sense displayed by a variety of wasp is ______.
A．more remarkable than that of a crow
B．less convincing an instance than that displayed by the crow because it seems to be instinctive
C．on a par with that of a crow
D．actually not an instance of what the author is discussing because it is tied to a regular pattern of responses
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