It’s the same in China --- many people, ________ some are not overweight at all, are always going on diets or taking weight-loss pills, ________ are often dangerous.

A．whose; which

B．of which; who

C．of whom; which

D．who; that

在急性肾衰竭患者少尿期或无尿期，需紧急处理的电解质失调是（）

A.高钾血症

B.低钠血症

C.低钙血症

D.高镁血症

E.低氯血症