题目:
梨形心的原因是()
A.右心室、左心室增大
B.左心室、右心房增大
C.左心室、左心房增大,肺动脉干突出
D.右心室、左心房增大
E.左心室增大,主动脉弓突出
答案:
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On May10th ,we had an activity in celebration of mother’s day, aiming to let everyone respect and considerate of his parents. As we know, most of us students today are...