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【单选题】
国家对达到职业资格所规定的必备学识、技术和能力的劳动者颁发的证明是()
A.
学历证书
B.
职业资格证书
C.
就业资格证书
D.
开业资格证书
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举一反三
【单选题】If the effective bearing area has been reduced , remedial action should be taken.
A.
by more than 5 percent
B.
by less than 10 percent
C.
to 95 percent
D.
to less than 90 percent
查看完整题目与答案
【单选题】某投资者拟准备投资于一个投资额为20000元的A项目,项目期限4年,期望投资报酬率为10%,每年能获取现金流量7000元。则净现值为( )元。
A.
3000
B.
2189
C.
3500
D.
2500
查看完整题目与答案
【单选题】Regarding water availability in the infrastructure ___.
A.
more than 95 percent of the world’s population has running water
B.
many cities have old leaky pipes
C.
it is not important to economic development
D.
All of the above
查看完整题目与答案
【单选题】对于结点电压法中的无伴电压源，下列叙述中，（    ）是错误的。
A.
可利用电源等效变换转化为电流源后，再列写结点电压方程
B.
可选择该无伴电压源的负极性端为参考结点，则该无伴电压源正极性端对应的结点电压为已知，可少列一个方程
C.
可添加流过该无伴电压源电流这一新的未知量，只需多列一个该无伴电压源电压与结点电压之间关系的辅助方程即可
D.
无伴受控电压源可先当作独立电压源处理，列写结点电压方程，再添加用结点电压表示控制量的补充方程
查看完整题目与答案
【简答题】对于结点电压法中的无伴电压源，下列叙述中，哪个是错误的：A. 可利用电源等效变换转化为电流源后，再列写结点电压方程；B.可选择该无伴电压源的负极性端为参考结点，则该无伴电压源正极性端对应的结点电压为已知，可少列一个方程；C.可添加流过该无伴电压源电流这一新的未知量，只需多列一个该无伴电压源电压与结点电压之间关系的辅助方程即可；D.无伴受控电压源可先当作独立电压源处理，列写结点电压方程，再添加用结点...
查看完整题目与答案
【简答题】Fill in the blanks with prepositions or adverbs to make up idioms, phrasal verbs and fixed expressions. 5. More than 2.3 million comments have been received by the Forest Service with_____________ of ...
查看完整题目与答案
【单选题】Claire’s seeks to appeal to young women by selling inexpensive jewelry, accessories, and ear piercings. Claire’s use of a ______ has been very successful; the firm has more than three thousand locatio...
A.
Differentiation focus
B.
Differentiation
C.
Cost focus
D.
Cost leadership
查看完整题目与答案
【单选题】某投资者拟准备投资于一个投资额为20000元的A项目，项目期限4年，期望投资报酬率为10%，每年能获取现金流量7000元。则该项目净现值为( )元。
A.
2403
B.
2189
C.
2651
D.
2500
查看完整题目与答案
【简答题】已经漂白加工的羽毛
查看完整题目与答案
【单选题】Which of the following, if true, would most weaken the argument of the critics of the Kyoto Protocol that implementing the protocol would be too costly?
A.
While it is true that the scientific community is not unanimously in agreement that global warming is occurring, more than 95 percent of climatologists at universities and government-funded laboratories in Europe and North America agree that global warmin
B.
Hybrid fuel-cell cars are less expensive to operate than conventional cars because of their much greater fuel efficiency, but it is unlikely that these operational savings will ever be able to cost-justify the much greater initial investment required to p
C.
Nuclear power, although completely flee of carbon emissions and comparable in operating cost to an oil-burning power plant, brings the added back-end cost of disposing of the spent nuclear waste, which is both radioactive and highly toxic.
D.
Although it is unfair in a sense to impose different emissions restrictions on different countries, it is only fair to impose the most restrictive limitations on countries whose advanced economic development will allow them to conform. to the regulations w
E.
One nation that switched the fuel of 35 percent of its power plants from coal to natural gas in order to reduce carbon dioxide emissions found that natural gas, although initially more expensive than coal, dropped in price to a level comparable to that of
查看完整题目与答案
相关题目：
【单选题】If the effective bearing area has been reduced , remedial action should be taken.
A.
by more than 5 percent
B.
by less than 10 percent
C.
to 95 percent
D.
to less than 90 percent
查看完整题目与答案
【单选题】某投资者拟准备投资于一个投资额为20000元的A项目,项目期限4年,期望投资报酬率为10%,每年能获取现金流量7000元。则净现值为( )元。
A.
3000
B.
2189
C.
3500
D.
2500
查看完整题目与答案
【单选题】Regarding water availability in the infrastructure ___.
A.
more than 95 percent of the world’s population has running water
B.
many cities have old leaky pipes
C.
it is not important to economic development
D.
All of the above
查看完整题目与答案
【单选题】对于结点电压法中的无伴电压源，下列叙述中，（    ）是错误的。
A.
可利用电源等效变换转化为电流源后，再列写结点电压方程
B.
可选择该无伴电压源的负极性端为参考结点，则该无伴电压源正极性端对应的结点电压为已知，可少列一个方程
C.
可添加流过该无伴电压源电流这一新的未知量，只需多列一个该无伴电压源电压与结点电压之间关系的辅助方程即可
D.
无伴受控电压源可先当作独立电压源处理，列写结点电压方程，再添加用结点电压表示控制量的补充方程
查看完整题目与答案
【简答题】对于结点电压法中的无伴电压源，下列叙述中，哪个是错误的：A. 可利用电源等效变换转化为电流源后，再列写结点电压方程；B.可选择该无伴电压源的负极性端为参考结点，则该无伴电压源正极性端对应的结点电压为已知，可少列一个方程；C.可添加流过该无伴电压源电流这一新的未知量，只需多列一个该无伴电压源电压与结点电压之间关系的辅助方程即可；D.无伴受控电压源可先当作独立电压源处理，列写结点电压方程，再添加用结点...
查看完整题目与答案
【简答题】Fill in the blanks with prepositions or adverbs to make up idioms, phrasal verbs and fixed expressions. 5. More than 2.3 million comments have been received by the Forest Service with_____________ of ...
查看完整题目与答案
【单选题】Claire’s seeks to appeal to young women by selling inexpensive jewelry, accessories, and ear piercings. Claire’s use of a ______ has been very successful; the firm has more than three thousand locatio...
A.
Differentiation focus
B.
Differentiation
C.
Cost focus
D.
Cost leadership
查看完整题目与答案
【单选题】某投资者拟准备投资于一个投资额为20000元的A项目，项目期限4年，期望投资报酬率为10%，每年能获取现金流量7000元。则该项目净现值为( )元。
A.
2403
B.
2189
C.
2651
D.
2500
查看完整题目与答案
【简答题】已经漂白加工的羽毛
查看完整题目与答案
【单选题】Which of the following, if true, would most weaken the argument of the critics of the Kyoto Protocol that implementing the protocol would be too costly?
A.
While it is true that the scientific community is not unanimously in agreement that global warming is occurring, more than 95 percent of climatologists at universities and government-funded laboratories in Europe and North America agree that global warmin
B.
Hybrid fuel-cell cars are less expensive to operate than conventional cars because of their much greater fuel efficiency, but it is unlikely that these operational savings will ever be able to cost-justify the much greater initial investment required to p
C.
Nuclear power, although completely flee of carbon emissions and comparable in operating cost to an oil-burning power plant, brings the added back-end cost of disposing of the spent nuclear waste, which is both radioactive and highly toxic.
D.
Although it is unfair in a sense to impose different emissions restrictions on different countries, it is only fair to impose the most restrictive limitations on countries whose advanced economic development will allow them to conform. to the regulations w
E.
One nation that switched the fuel of 35 percent of its power plants from coal to natural gas in order to reduce carbon dioxide emissions found that natural gas, although initially more expensive than coal, dropped in price to a level comparable to that of
查看完整题目与答案