—Excuse me, are these ______ new shoes?

—No, they aren’t. ______ are black over there.

A．your; Mine

B．my; Your

C．her; Her

D．mine; Yours

心肌梗死的"损伤型"心电图改变表现为（）。

A.病理性Q波

B.R波电压降低

C.ST段抬高

D.T波直立高耸

E.T波对称