The finding that U.S. exports tend to come from labor-intensive industries, while U.S. imports are produced using relatively capital intensive techniques is known as
A.
the Leontief paradox.
B.
the balance of trade enigma.
C.
the Heckscher-Ohlin paradox.
D.
the Krugman finding.
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【单选题】'It's rat data but humans are mammals just like these animals are mammals.' What does the sentence suggest?
A.
The experiments on the rats have nothing to do with humans.
B.
The experiments on the rats are very important for animals.
C.
The experiments on the rats are much the same on humans.
D.
The experiments on the rats are much the same on other animals.