单选题
33.
Since opening our new factories in western China, overall production seems to have nearly ______.
A、
duplicated
B、
gone up
C、
two times
D、
doubled
【正确答案】
D
【答案解析】
选项A、B和C都错误，填入后都句意不通。选项D正确，double意思是“翻倍”。
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