After 5 days of hospitalization, the client who is receiving morphine sulfate for pain control asks for more pain medication with increasing frequency and exhibits increased anxiety and restlessness. His physical condition is stable. What is the probable cause of his behavior
A. His morphine dosage is too high.
B. His coping mechanisms are exhausted.
C. He is becoming addicted to the narcotic.
D. He has developed tolerance to his narcotic dosage.
下列关于可持续发展战略的说法,正确的是______
A. 正确认识和处理人口增长与经济发展的关系,是实施可持续发展战略的基础
B. 正确处理经济和环境建设的关系,是可持续发展战略的重要内容之一
C. 可持续发展首先要满足当代人的需要
D. 可持续发展不仅要满足当代人,而且要保护资源和生态环境,不对后代人的生存和发展构成威胁
下列属于商标权的内容是______
A. 独占权
B. 排他权
C. 转让权
D. 续展权
法律关系的产生、变更和消灭取决于______
A. 存在法律规范
B. 存在法律事实
C. 存在法律意识
D. 存在法律后果