Adam Smith saw that the division of labor __________．
A. enable each worker to make pins more quickly and more cheaply
B. increased the possible output per worker
C. increased the number of people employed in factories
D. improved the quality of pins produced．
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In short，__________ he lives，a man belong to some society．
A. whatever
B. whenever
C. whichever
D. wherever
The central idea of Paragraph l is that__________ .
A. each nation is peculiar enough to enable us to distinguish it from others
B. the peoples of the world are as alike as they are different
C. the peoples of the world have more similarities than differences
D. those who do．more than is strictly necessary are common in every country
A.claimsB.proposesC.advisesD.suggests
A. claims
B. proposes
C. advises
D. suggests
Waiter：Would you like to try Chinese food？Customer：Yes，__________． Waiter：Have you ever tried roast duck？Customer：Yes，I have．
A. I like
B. I hope
C. I"d love to
D. I like
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