Which of the following findings would indicate that the goals for total parenteral nutrition (TPN) are being achieved for the client

A．Serum glucose level of 96.

B．Weight gain of 0.5 pounds/day.

C．Urine negative for glucose.

D．Serum potassium level of 4 mEq/L.

高压排汽止回阀、抽汽逆止阀和高压缸通风阀连锁保护的作用，是（）

A.当主机安全油压泄去时，关闭各级抽汽逆止阀，开启高压缸通风阀

B.当#1、#2＃高压主汽门全关时，关闭高压缸排汽逆止阀，开启高压缸通风阀

C.当汽轮机跳闸或发电机甩负荷至零时，开启高压缸通风阀

D.当暖缸电动阀开启时，关闭通风阀、各级抽汽逆止阀