GRE考试

【单选题】According to the passage, air turbulence generally does which of the following
Ⅰ.Creates small droplets of equal size to form in cloud cores.
Ⅱ.Causes different concentrations of rain droplets to form in different places.
Ⅲ. Speeds up the rate by which large droplets appear.
A、Ⅰ only
B、Ⅱ only
C、Ⅰ and Ⅱ only
D、Ⅱ and Ⅲ only
E、Ⅰ,Ⅱ, and Ⅲ
网考网参考答案：D
网考网解析：
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