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【单选题】
下列有关实验的描述或操作错误的是A.
牙膏中含有不溶于水的成分，如碳酸钙、磷酸钙、氢氧化铝、二氧化硅等，它们主要起摩擦剂的作用
B.
纸层析法通常以滤纸作为惰性支持物。滤纸纤维具有亲水性，它所吸附的水作为固定相
C.
欲检验火柴头燃烧后的气体中是否含有CO 2 ，可将气体依次通过足量NaHCO 3 溶液和澄清石灰水
D.
减压过滤不宜用于过滤胶状沉淀或颗粒太小的沉淀
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【简答题】光敏电阻的阻值与环境温度（），光照升高光敏电阻的阻值（）。
【多选题】What are the genenral components in 360-degree performance appraisal?
A.
Superior appraisal
B.
Subordinate appraisal
C.
Peer appraisal
D.
Self appraisal
【单选题】Which of the following is likely to be the most objective approach to appraisal?
A.
Self appraisal
B.
Peer appraisal
C.
Upward appraisal
D.
360-degree feedback
【简答题】A．admission B．acknowledgement C．recognition D．appraisal
【简答题】次级评价(secondary appraisal)
【简答题】初级评价(primary appraisal)
【单选题】Which of the following is not a barrier to effective appraisal?
A.
Appraisal is seen as a way of wrapping up unfinished business for the year
B.
Appraisal is seen as conforming to Human Resource procedures
C.
Appraisal is seen as an opportunity to raise workplace problems and issues
D.
Appraisal is seen as an annual event
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