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【单选题】
对实验室安全用电的叙述不正确的是( )。A.
不得用照明线接2kw的电炉进行加热操作
B.
必须单独走动力线
C.
精密仪器与、烘箱、电磁炉等不得使用一条线送电
D.
人员离开实验室时，、烘箱等可以不关
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举一反三
【单选题】In the short run, if average variable costs equal $6 and average total costs equal $10 and output equals 100, then total fixed costs equal______.
A.
$4
B.
$400
C.
16
D.
1600
【单选题】Which of the following are variable costs of production?
A.
the wages paid to non-salaried employees
B.
the cost of wood used to produce furniture
C.
the cost of electricity that powers the lighting and computer systems in an office building
D.
All of the above are variable costs of production.
【多选题】Which of the following costs are variable expenses?
A.
production costs
B.
shipping costs
C.
mailng
D.
raw materials
【单选题】Which of the following statements is TRUE about fixed and variable costs?
A.
Both costs are constant when considered on a per-unit basis.
B.
Both costs are constant when considered on a total basis.
C.
Fixed costs are constant in total and variable costs are constant per unit.
D.
Variable costs are constant in total and fixed costs are constant per unit.
【简答题】(题干) 叶某是甲房地产经纪公司(以下简称甲公司)新聘用的房地产经纪人，叶某获得的报酬是每月500元底薪，另加业务收入提成。客户李某委托甲公司为其出售一间办公用房，甲公司指定叶某办理该业务。叶某在核实该房屋产权时，发现该房屋属于李某和王某共有，询问李某此情况时，李某称王某完全同意出售该房屋，并出示了王某的私章和身份证，称王某因公差去了另外一个城市，长时间不能回来。叶某为表现自己的工作能力并提升业绩...
【单选题】Total variable costs:
A.
are costs associated with short-run fixed capital.
B.
are so named because they vary from firm to firm within an industry.
C.
increase as production increases.
D.
decrease as production increases.
【多选题】Variable costs in ocean freight services involve ( ).
A.
loading and unloading expenses
B.
port costs
C.
insurance
D.
administrative costs
【简答题】赵某是甲房地产经纪公司(以下简称“甲公司”)新聘用的房地产经纪人，赵某获得的报酬是每月500元底薪，另加业务收入提成。客户李某委托甲公司为其出售一间办公用房，甲公司指定赵某办理该业务。赵某在核实该房屋产权时，发现该房屋属于李某和王某共有，询问李某此情况时，李某称王某完全同意出售该房屋，并出示了王某的私章和身份证，称王某因公差去了另外一个城市，长时间不能回来。赵某为表现自己的工作能力并提升业绩，迅速...
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