单选题（）with the size of the whole earth, the highest mountains do not seem high at all.AIf you compareBCompare themCWhen comparedDA comparison
单选题
（）with the size of the whole earth, the highest mountains do not seem high at all.
A
If you compare
B
Compare them
C
When compared
D
A comparison
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单选题______ with the size of the whole earth, the highest mountain doesn't seem high at all.AWhen comparedBCompareCWhile comparingDComparing
单选题（）with the size of the whole earth, the highest mountains do not seem high at all.AIf you compareBCompare themCWhen comparedDA comparison
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