In the figure at the right, the legs of fight triangle ACB are diameters of the two semicircles. If AB = 4, what is the sum of t

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问题 In the figure at the right, the legs of fight triangle ACB are diameters of the two semicircles. If AB = 4, what is the sum of the areas of the semicircles?

选项 A、π
B、2π
C、4π
D、8π
E、16π

答案B

解析

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In the figure at the right, the legs of fight triangle ACB are diameters of the two semicircles. If AB = 4, what is the sum of t

GRE QUANTITATIVE

GRE

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Theentrepreneurshipmovementhasitscritics,especiallyamongthosewhoseecollegeasatimeforextensiveacademicexplorati

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WhenNicholasPavewasthreeyearsold,heateapieceofcakeataparty.Withinseconds,histhroatwasachingandhisnosewa

WehavequiteabitofinformationaboutancientEgyptianmedicine．Doctors’instructionshavebeenfoundtotellus【56】theydid

Howdoyouknowifyourhomeisaneasyaimforthefts?Aroundtheholidays,manyfamiliesdon’tconsidertakingpropermeasures

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