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题目内容
（伊犁师范-英语阅读1）
Christakis says the effect triggers "quitting cascades" analogous to lights going outdown the line on a power grid until ultimately it goes dark () .
A . fundamentally
B . eventually
c . firstly
D . intimately
A . fundamentally
B . eventually
c . firstly
D . intimately
参考答案
