下列哪类疾病不属于肠道病毒引起的
A.胃肠道感染
B.皮疹
C.心肌炎
D.无菌性脑膜炎
E.腮腺炎
参考答案:E
主动脉瓣关闭不全晚期最主要的并发症是()
A.肺水肿
B.咯血
C.心房颤动
D.心力衰竭
E.肺部感染
Language is ______ in that there is no logical relationship between words and their meanings.