右心房异常表现为()
A.P波形态多样
B.V1导联P波高耸
C.仅在V1导联有深倒的P波
D.P波存在但被掩盖
E.无P波
参考答案:B
We all like light music , which makes us _____.[ ]
A. feel relaxing
B. to feel relaxed
C. feel relaxed
D. to feel relaxing
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