单项选择题


A．elements
B．components
C．functions
D．achievements
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单项选择题
The main idea of this passage is that______.
A．counting is not to be confused with number sense
B．man's rudimentary number sense is found in lower species
C．animals cannot count
D．number sense is a primitive form of counting
单项选择题
Counting is different from number sense in that counting is ______.
A．dependent on simpler mental activity
B．found in animals as well as man
C．farther up the evolutionary scale
D．present in animals on the basis of much evidence
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