慢性肾衰的饮食原则（）。
A.无须限制
B.高蛋白饮食以增加营养
C.低蛋白饮食
D.低磷饮食
E.严格限制食盐
参考答案：C, D
Jeff goes to work _______and his wife goes to work_______[ ]
A．by car; on her bike
B．by a car; on her bike
C．by car; by bikes
D．by his car; by her bike
