— I’ve taken someone else’s green sweater by mistake.

— It ______ Harry’s. He always wears green.

A．has to be

B．will be

C．mustn’t be

D．could be

冠状动脉粥样硬化最好发的部位是( )

A．右主干

B．左主干

C．左旋支

D．前降支

E．右回旋支