从1,2,3,4,5五个数码中，任取2个不同数码排成一个两位数，则所得2位数为偶数的概率为（ ）．
A. 0.3
B. 0.4
C. 0.5
D. 0.6
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Whoproposedtheideaofconsideringthehumanbodyasamachine?
AlbertEinstein
B. ThomasEdison
C. IsaacNewton
D. A.RenéDescartes
Whichofthefollowingwordsmeansthescientificstudyofthestructureofhumanoranimalbodies?
A. autonomy
B. anatomy
C. automaton
D. analysis
Whatdoes "rounds" meanin "grandrounds"?
A. roundobjectsorpiecesofsomething
B. A.stagesinasportscompetition
C. A.theusualvisitsthatadoctorregularlymakesaspartoftheirjob
D. A.shotsfromagun
Whatiscalled "immortalityinculture"?
A. Cancercells
B. GItract
C. Epithelialcells
D. Analgesic
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