题目内容
图形上未注出公差的尺寸,可以认为是没有公差的尺寸。
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Icebergs are parts of glaciers that break off, ________ into water, foat about awhile, and finally melt.
Streams of fire ran down the hills, and at length a _________ arose so loftily that it touched the skies.
In the Persian Gulf area, oil is found in ______and its production has been able to keep up with world demand.
Immigration poses two main challenges for the rich world's governments. One is how to manage the inflow of ______; the other, how to integrate those who are already there.
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