问题
选择题
The population of many Chinese cities has _________ doubled in the past 30 years.
A．larger than
B．more than
C．as great as
D．quite a bit
答案
答案：B
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The population of many Chinese cities has _________ doubled in the past 30 years.
A．larger than
B．more than
C．as great as
D．quite a bit
答案：B