10. Heart trouble is one of the most serious _____ of death among old people.A.reasonsB.troublesC.il

题目简介

10. Heart trouble is one of the most serious _____ of death among old people.A.reasonsB.troublesC.il

题目详情


10. Heart trouble is one of the most serious _____ of death among old people.
A.reasonsB.troublesC.illnessesD.Causes
题型:单选题难度:偏易来源:不详

答案

D

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