In peace, too , the Red Cross is expected to send help _________there is human suffering.

A．whoever

B．however

C．whatever

D．wherever

以下关于肾结石的声像图表现不正确的是（）

A.多为强回声光团

B.常伴有声影

C.可以伴有肾积水

D.随患者体位改变而移动

E.位于肾窦内