抑郁症的治疗过程中，最应当注意的问题是（）

A.改善营养

B.改善睡眠

C.防自杀

D.防感染

E.多活动

The knife on an inflatable liferaft will always be located（）.

A.in one of the equipment bags

B.in a special pocket near the forward entrance

C.on a cord hanging from the canopy

D.in a pocket on the first aid kit