单项选择题

The main idea of this passage is that ______.

A．man's elementary number sense is found in lower species
B．birds have a limited number sense
C．animals cannot count
D．number sense is a primitive form of counting

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热门试题

单项选择题

According to the passage, number sense in animals appears to be ______.

A．restricted to about one dozen species or less
B．present chiefly in winged creatures
C．similar to a faculty possessed ty men in all stages of development
D．as intricate as counting

单项选择题

The author's attitude toward the communications revolution is ______.

A．positive
B．critical
C．indifferent
D．tolerant