【多选题】
降水回波反射率因子回波大致可以分为哪几种类型___。
A. 阵雨回波
B. 暴雨回波
C. 积云降水回波
D. 雷阵雨回波
E. 层状云降水回波
F. 积云层状云混合型降水回波
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答案
CEF
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【多选题】
灾害性天气及其次生灾害预报制作和发布规定：灾害性天气及其次生灾害落区预报每天制作和分发两次，早晨制作和发布未来（12、24、48小时）预报，下午制作和发布未来（12、24、48、72小时）预报。___
A. 12、24小时
B. 12、24、48小时
C. 12、24、48、72小时
D. 12、24、48、72、96小时
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预计未来（ ）责任区内最低气温下降（ ）以上，最低气温为≤4℃。陆上平均风力5-7级（海区平均风力7级以上）应发布寒潮警报。___
A. 48小时
B. 24小时
C. 10℃
D. 8℃
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