（）forms over land，most frequently during autumn and winter over low-lying land，especially if it is damp and marshy and in valleys on quiet nights with clear skies...

第1题

[单选题] An “atoll cloud” forming over an island due to heating of the land during the daytime would be which type? （）

A、Cirrus B、Cumulus C、Stratus D、Nimbus

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第2题

[单选题] An atoll cloud forming over an island due to heating of the land during the daytime would be which type? （）

A、Cirrus B、Cumulus C、Stratus D、Nimbus

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第3题

[单选题] In many areas “atoll” clouds (clouds of vertical development) are produced over small islands. These are the result of（）.

A、rising air currents produced by the warm islands B、warm air from the sea rising over higher land areas C、cool land air mixing with warm sea air D、descending air over the islands

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第4题

[单选题] In many areas atoll clouds (clouds of vertical development) are produced over small islands. These are the result of（）.

A、rising air currents produced by the warm islands B、warm air from the sea rising over higher land areas C、cool land air mixing with warm sea air D、descending air over the islands

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第5题

[单选题] What form of ice is of land origin?（）

A、Shuga B、Floe C、Spicule D、Bergy bit

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第6题

[单选题] Radiation fog（）.

A、always forms over water B、is formed by a temperature inversion C、is thinnest at the surface D、dissipates during the evening

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第7题

[] What form of ice is of land origin（）.

A、A.Shuga B、B.Floe C、C.Spicule D、D.Bergy bit