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单项选择题

______ is the most important of all American crops.

A．Wheat
B．Corn
C．Cotton
D．Rice

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热门试题

单项选择题Which of the following is NOT an English noble title

A．Duke
B．Baron
C．Earl
D．Count

单项选择题______ is not one of William Shakespeare's four greatest tragedies.

A．Hamlet
B．Macbeth
C．The Twelveth Night
D．Othello