问题
选择题
Some scientists think that it may take ________ years to make robots look like people.[ ]
A. hundreds of
B. two hundreds of
C. two hundreds
D. two hundred of
答案
答案：A
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Some scientists think that it may take ________ years to make robots look like people.[ ]
A. hundreds of
B. two hundreds of
C. two hundreds
D. two hundred of
答案：A