单项选择题


A．size
B．content
C．form
D．quality
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单项选择题
Which of the following is Not the reason that conservation has never been a strong value7
A．Americans stick to old wasteful habits.
B．Americans believe their country is abundant with natural resources.
C．Many people will lose their jobs on account of conservation.
D．It is difficult to recycle paper, cans, bottles and other goods.
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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