所谓"阴中求阳"是指

A．阴病治阳

B．阳病治阴

C．壮水之主，以制阳光

D．益火之源，以消阴翳

E．以上都不是

Xu Xia and her teammates are _______ the U.S.A. next week.[ ]

A.leaving for

B.leave for

C.to

D.left