“Drive-ins” have large parking lots ______ customers are served in their cars by waitresses.

A．who

B．when

C．which

D．where

SLE肾损害的发生机制是()

A．Ⅰ型变态反应

B．Ⅱ型变态反应

C．Ⅲ型变态反应

D．Ⅳ型变态反应