--- Can you please tell me something about life in the future?

---Oh, maybe in the future, people will _______ by robots.

A．cared for

B．be taken good care

C．be cared for

D．look after

低钾血症患者补钾速度一般不宜超过（）

A.12mmol/h

B.20mmol/h

C.30mmol/h

D.40mmol/h

E.50mmol/h