一只钢瓶内储有压缩气体,气体密度为,若从瓶中放出一半质量的气体,则瓶内剩余气体的密度将 [ ]
A.变为2ρ
B.变为ρ/2
C.仍然为ρ
D.无法确定
答案:B
A client is admitted for detoxification after a cocaine overdose. The client tells the nurse that he frequently uses cocaine but that he can control his use if he chooses. Which coping mechanism is he using
A. Withdrawal.B. Logical thinking.C. Repression.D. Denial.