单项选择题

In 1959 we produced a hundred-fold ()steel as we did in 1949

A. more than
B. as much
C. as many
D. doubled

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It is known to every one that the film is()a real event.

A. based on    
B. built on     
C. looked on    
D. carried on
单项选择题
() succeed in everything we do.

A. Only by working hard can we
B. By only working hard we can
C. Only we can by working hard
D. Only by working hard we can
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