Which nursing measure would be most effective in helping the client cough and deep breathe after a cholecystectomy

A．Having the client take rapid, shallow breaths to decrease pain.

B．Having the client lay on the left side while coughing and deep breathing.

C．Teaching the client to use a folded blanket or pillow to splint the incision.

D．Withholding pain medication so the client can be alert enough to follow the nurse's instructions.

喷淋降温有许多局限性，主要是（）、加快油罐锈蚀进程。

A、耗水量大

B、排水困难

C、降温速度慢

D、影响油品质量