单项选择题

Which is the most important crop in America

A．Corn.
B．Rice.
C．Barley.
D．Oat.
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The capital of New Zealand is______.
A．Canberra
B．Melbourne
C．Wellington
D．Perth
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W. H. Auden was a______.
A．playwright
B．critic
C．poet
D．novelist
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