单项选择题

According to the passage, icebergs origins from a build-up of _________.

A．turbulent water
B．feathers
C．underwater pressure
D．snowflakes
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单项选择题
The author states that icebergs are rarely seen because they are _________.
A．surrounding by fog
B．hidden beneath the mountains
C．located in remote regions of the world
D．broken by waves soon after they are formed
单项选择题
The attitude of the author toward icebergs is one of _________.
A．disappointment
B．humor
C．disinterest
D．wonder
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