下列症状中不是低血钾临床表现的是（）

A.肌肉软弱无力，甚至四肢软瘫

B.腹胀、肠麻痹

C.心慌、心率快、甚至心律失常

D.尿量明显减少，出现大量蛋白及管型

E.低钾、低氯性碱中毒，可出现手足抽搐

Having a glass of water first thing in the morning helps rid your body of poisonous substances that ________ overnight.

A．were stored

B．had been stored

C．are being stored

D．have been stored