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【单选题】
Bacterial mutants that require supplemental nutrients in their growth media are called:
A.
autotrophs
B.
heterotrophs
C.
prototrophs
D.
omnitrophs
E.
auxotrophs
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【判断题】一般来说,打造爆款的销售周期包括导人期、爆发期、成熟期、 衰退期。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】Which of the letters below represent the quantities of profit maximization, productive efficiency, and allocative efficiency?
A.
B = profit maximization; D = productive efficiency; C = allocative efficiency
B.
A = profit maximization; C = productive efficiency; B = allocative efficiency
C.
A = profit maximization; B = productive efficiency; C = allocative efficiency
D.
B = profit maximization; C = productive efficiency; D = allocative efficiency
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【单选题】What is the difference between static efficiency and dynamic efficiency?
A.
Dynamic efficiency allows us to evaluate resource allocations across time periods while static efficiency looks at resource allocation where time is not important.
B.
Dynamic efficiency is useful for environmental policymaking while static efficiency is not.
C.
Static efficiency is useful for environmental policymaking while dynamic efficiency is not.
D.
Static efficiency and dynamic efficiency are two names for the same thing.
查看完整题目与答案
【判断题】电流表的内阻越小越好。
A.
正确
B.
错误
查看完整题目与答案
【多选题】固体分散物在载体中的分散状态可有( )。
A.
分子
B.
离子
C.
胶态
D.
微晶或无定形状态
查看完整题目与答案
【单选题】How does the volumetric efficiency and mechanical efficiency change while the working pressure rises?
A.
the volumetric efficiencygoes up, the mechanical efficiency goes up
B.
the volumetric efficiencygoes up, the mechanical efficiency goes down
C.
the volumetric efficiencygoes down, the mechanical efficiency goes up
D.
the volumetric efficiencygoes down, the mechanical efficiency goes down
查看完整题目与答案
【单选题】下列有关基础的埋置深度,何者是正确的?
A.
除岩石地基外,基础埋深不宜小于1m。
B.
当上层地基的承载力大于下层土时,宜利用上层土作持力层。
C.
在抗震设防区,除岩石地基外,天然地基上的箱形和筏形基础其埋置深度不宜小于建筑物高度的1/15。
D.
桩箱或桩筏基础的埋置深度不宜小于建筑物高度的1/15
查看完整题目与答案
【单选题】Listen to the news report
A.
Medical costs are quite high.
B.
Health care is provided by the government.
C.
Health care is covered by insurance.
D.
Not all citizens have access to the health care.
查看完整题目与答案
【判断题】Efficiency and personality of the front desk staff are crucial for the realization of the hotel’s target.
A.
正确
B.
错误
查看完整题目与答案
【简答题】配置效率(帕累托效率)(allocative efficiency，Pareto efficiency)
查看完整题目与答案
相关题目：
【判断题】一般来说,打造爆款的销售周期包括导人期、爆发期、成熟期、 衰退期。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】Which of the letters below represent the quantities of profit maximization, productive efficiency, and allocative efficiency?
A.
B = profit maximization; D = productive efficiency; C = allocative efficiency
B.
A = profit maximization; C = productive efficiency; B = allocative efficiency
C.
A = profit maximization; B = productive efficiency; C = allocative efficiency
D.
B = profit maximization; C = productive efficiency; D = allocative efficiency
查看完整题目与答案
【单选题】What is the difference between static efficiency and dynamic efficiency?
A.
Dynamic efficiency allows us to evaluate resource allocations across time periods while static efficiency looks at resource allocation where time is not important.
B.
Dynamic efficiency is useful for environmental policymaking while static efficiency is not.
C.
Static efficiency is useful for environmental policymaking while dynamic efficiency is not.
D.
Static efficiency and dynamic efficiency are two names for the same thing.
查看完整题目与答案
【判断题】电流表的内阻越小越好。
A.
正确
B.
错误
查看完整题目与答案
【多选题】固体分散物在载体中的分散状态可有( )。
A.
分子
B.
离子
C.
胶态
D.
微晶或无定形状态
查看完整题目与答案
【单选题】How does the volumetric efficiency and mechanical efficiency change while the working pressure rises?
A.
the volumetric efficiencygoes up, the mechanical efficiency goes up
B.
the volumetric efficiencygoes up, the mechanical efficiency goes down
C.
the volumetric efficiencygoes down, the mechanical efficiency goes up
D.
the volumetric efficiencygoes down, the mechanical efficiency goes down
查看完整题目与答案
【单选题】下列有关基础的埋置深度,何者是正确的?
A.
除岩石地基外,基础埋深不宜小于1m。
B.
当上层地基的承载力大于下层土时,宜利用上层土作持力层。
C.
在抗震设防区,除岩石地基外,天然地基上的箱形和筏形基础其埋置深度不宜小于建筑物高度的1/15。
D.
桩箱或桩筏基础的埋置深度不宜小于建筑物高度的1/15
查看完整题目与答案
【单选题】Listen to the news report
A.
Medical costs are quite high.
B.
Health care is provided by the government.
C.
Health care is covered by insurance.
D.
Not all citizens have access to the health care.
查看完整题目与答案
【判断题】Efficiency and personality of the front desk staff are crucial for the realization of the hotel’s target.
A.
正确
B.
错误
查看完整题目与答案
【简答题】配置效率(帕累托效率)(allocative efficiency，Pareto efficiency)
查看完整题目与答案