I was looking for a birthday gift for my mother, but I couldn’t find ______ suitable.

A．something

B．anything

C．nothing

D．everything

低钾血症的临床表现正确的是()

A．腱反射亢进

B．神经肌肉兴奋性降低

C．神经肌肉兴奋性增高

D．心电图T波高尖

E．低钾低氯性碱中毒，尿液均呈碱性