With the help of the foreign experts, they produced ___ washing machines in 2003 as the year before.   
A．a(chǎn)s twice manyB．a(chǎn)s twice as manyC．a(chǎn)s many as twiceD．twice as many
D
考查倍數(shù)表達。倍數(shù)表達方法：倍數(shù)+as+形容詞+as，結(jié)合下文as，可知選D。
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