According to the second paragraph, co-operation skills ______.
A. require special qualifies and abilities
B. are learned while working in a team
C. need exceptional mental abilities
D. are quite complicated to learn
查看答案
Team building activities are good for ______.
A. hiring employees with special talent
B. encouraging employees to co-operate
C. helping employees to work independently
D. training employees in their special fields.
“理想的夫琅禾费衍射装置,核心是一个凸透镜” 是否正确?
A. 对
B. 错
配制100ml2%头孢噻吩钠溶液，需加入（）克氯化钠使其成等渗（E=0.24）
A. 0.42
B. 0.84
C. 0.16
D. 0.11
E. 0.59
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