What happened to Alcatraz prison in 1963, 29 years after it was open?
A. It was officially closed in 1963.
B. It became a tourist attraction in 1963.
C. Twenty-nine prisoners tried to escape in 1963.
D. The sea salt began to damage the prison in 1963.
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What can people do on Alcatraz Island today?
A. Watch a movie being filmed.
B. Visit the damaged lighthouse.
C. Take a tour in the famous prison.
D. Observe San Francisco from the island.
在“同伴教育对高血压患者服药依从性的影响”研究中,“同伴教育”是
A. 自变量
B. 因变量
C. 外变量
D. 干扰变量
E. 中介变量
在“社会支持对护理人员负性情绪影响”的研究中,因变量是
A. 社会支持
B. 负性情绪
C. 护理人员年龄
D. 科室
E. 护理人员健康状况
在“同伴教育对护生专业认同影响”的研究中,属于常量的是
A. 同伴教育
B. 护生
C. 专业认同
D. 年级
E. 性别