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【单选题】
What will the woman do during her next art history class?A.
Contribute a single comment during the class discussion.
B.
Ask her professor for tips on how to participate more.
C.
Talk about her favorite Impressionist painters.
D.
Voice as many of her opinions as she can.
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【单选题】用标准NaOH溶液滴定未知浓度的盐酸溶液，下列操作会使测定结果偏低的是
A.
配制NaOH标准液时，所用的NaOH固体中含有少量的KOH杂质
B.
滴定前对碱式滴定管仰视读数，滴定后又俯视
C.
滴定前，碱式滴定管尖嘴部分有气泡，滴定后气泡消失
D.
碱式滴定管用蒸馏水洗净后，直接装入标准NaOH溶液
【简答题】A．diversion B．diversity C．disease D．specialization
【简答题】存放爆炸物的仓库内，应该采用__________照明设备。
【单选题】用标准的NaOH溶液滴定未知浓度的盐酸，若测定结果偏低，其原因可能是( )
A.
盛装标准液的滴定管未用标准液润洗
B.
滴定终点读数时，仰视滴定管的刻度，其他操作正确
C.
盛装未知液的锥形瓶用蒸馏水洗过后再用未知液润洗
D.
滴定前无气泡，滴定到终点时，发现尖嘴处有气泡
【单选题】Specialization and trade:
A.
improves standards of living.
B.
is based on who can produce a good at the lower opportunity cost.
C.
is based on comparative advantage.
D.
is accurately described by each of the preceding statements.
【单选题】Which statement accurately defines work specialization?
A.
It is the degree to which tasks are grouped together.
B.
Individual employees specialize in doing part of an activity rather than the entire activity.
C.
Jobs are ranked relative only to their worth or value to the businesses.
D.
Work specialization clarifies who reports to whom.
【多选题】2008年在国际金融危机影响下西方国家社会生活中出现的问题有()
A.
经济发展“失调”
B.
政治体制“失灵”
C.
从根本上解决了失业问题
D.
社会融合机制“失效”
【简答题】2008年在国际金融危机影响下西方国家社会生活中出现的问题有()
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