单项选择题
A.clot : blood B.matter : element C.glucose : sugar D.bile : liver E. tar : mineral
A.melancholic : bitterness B.hedonist : ambition C.daredevil : audacity D.perfectionist : patience E. cynic : indiscretion
A.voice : chorus B.chisel : sculpture C.keyboard : harmony D.sound : monologue E. violin : concerto