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单选题
They know that strong winds, mild and humid air, and cold air near to each other might trigger a really explosive weather situation.
A
cause
B
imply
C
forecast
D
reduce
参考答案
参考解析
解析：
句意：他们知道强风、温和潮湿的空气和冷空气聚在一起会引发剧烈的天气变化。trigger引发，引起，触动。cause引起，导致。imply暗示。forecast预告。reduce减少。
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