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【简答题】
电话交换台每分钟的呼唤次数服从参数为4的泊松分布,求(1)每分钟恰有8次呼唤的概率,(2)每分钟的呼唤次数大于2的概率。
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参考答案：
举一反三
【单选题】Which of the following actions may NOT be considered as a way of non-verbal communication?
A.
Gazing at a person longer than usual.
B.
Shifting positions in a chair.
C.
Crossing one's legs.
D.
Yawning in public
查看完整题目与答案
【单选题】Which of the following is NOT given as an example of actions?
A.
Silence
B.
A wink
C.
Television
D.
A handshake
查看完整题目与答案
【单选题】Which of the following central bank actions would be appropriate to combat rapid inflation?
A.
A reduction in the discount rate
B.
A reduction in reserve requirements
C.
A cut in taxes
D.
A sale of government securities
查看完整题目与答案
【简答题】Which factors determine carding actions?
查看完整题目与答案
【单选题】Which of the following is not mentioned in the text?
A.
New actions are of importance to the prion of potential outrages.
B.
France announced its measures after a bomb case in 1893.
C.
New measures are announced in the aftermath of new attacks.
D.
Countries can be defeated whereas terrorism can not be defeated.
查看完整题目与答案
【简答题】(b) (i) Advise the directors of GWCC on specific actions which may be considered in order to improve the estimated return on their investment of ￡1,900,000. (8 marks)
查看完整题目与答案
【单选题】经济学家：美国的个人所得税是累进税，税法极其复杂。想诚实纳税的人经常因理解错误；而出现申报错误；而故意避税的人总能找到税法的漏洞。一般而言，避税空间的大小与税制的复杂程度成正比，避税能力的高低与纳税人收入水平成正比。复杂税制造成的避税空间大多会被富人利用，使得累进税达不到税法规定的累进程度，其调节分配的功能也大大弱化。如果以下陈述为真，哪一项对经济学家的上述论证提供了最强的支持（）
A.
在申报纳税时，美国有60%的人需要雇请专业人士代理申报，有22%的人需要用报税软件帮助计算。B.美国人在1981年就提出了"废除累进税率，实行单一税率"的设想。
B.
1988年至2006年，美国1最富人群的收入占全国收入的比重从15%上升为22%，但他们的平均税率却从24%降到22.8%。
C.
2011年9月17日美国爆发了占领华尔街运动，声称代表美国99的金融业的贪婪腐败及社会不公。
查看完整题目与答案
【单选题】In a refrigeration system, which of the following statements describes the actions occurring when a solenoid valves, used in conjunction with an unloader head is energized? .
A.
The solenoid valves directs high pressure gas to the valve lifting device raising the suction valve off its seat and causing one specific cylinder to become unloaded
B.
The solenoid valves directs high pressure gas to the underside of the unloading piston, causing it to rise and allowing the recirculating ports to be opened
C.
When the solenoid valve becomes energized, the valve ports become closed, allowing discharge pressure to build up above the piston, shifting it and causing it to unload
D.
The solenoid valve allows the refrigerant to pass from the suction chamber to the top of the unloader piston, causing the piston to lift and unload the cylinder
查看完整题目与答案
【单选题】Which of the following actions cannot influence climate?
A.
Physical actions on land and in the oceans.
B.
Physical actions in the atmosphere.
C.
Physical actions in the space.
D.
Physical actions in the groundwater.
查看完整题目与答案
【简答题】Which of the following actions may NOT be considered as a way of non-verbal communication?
查看完整题目与答案
相关题目：
【单选题】Which of the following actions may NOT be considered as a way of non-verbal communication?
A.
Gazing at a person longer than usual.
B.
Shifting positions in a chair.
C.
Crossing one's legs.
D.
Yawning in public
查看完整题目与答案
【单选题】Which of the following is NOT given as an example of actions?
A.
Silence
B.
A wink
C.
Television
D.
A handshake
查看完整题目与答案
【单选题】Which of the following central bank actions would be appropriate to combat rapid inflation?
A.
A reduction in the discount rate
B.
A reduction in reserve requirements
C.
A cut in taxes
D.
A sale of government securities
查看完整题目与答案
【简答题】Which factors determine carding actions?
查看完整题目与答案
【单选题】Which of the following is not mentioned in the text?
A.
New actions are of importance to the prion of potential outrages.
B.
France announced its measures after a bomb case in 1893.
C.
New measures are announced in the aftermath of new attacks.
D.
Countries can be defeated whereas terrorism can not be defeated.
查看完整题目与答案
【简答题】(b) (i) Advise the directors of GWCC on specific actions which may be considered in order to improve the estimated return on their investment of ￡1,900,000. (8 marks)
查看完整题目与答案
【单选题】经济学家：美国的个人所得税是累进税，税法极其复杂。想诚实纳税的人经常因理解错误；而出现申报错误；而故意避税的人总能找到税法的漏洞。一般而言，避税空间的大小与税制的复杂程度成正比，避税能力的高低与纳税人收入水平成正比。复杂税制造成的避税空间大多会被富人利用，使得累进税达不到税法规定的累进程度，其调节分配的功能也大大弱化。如果以下陈述为真，哪一项对经济学家的上述论证提供了最强的支持（）
A.
在申报纳税时，美国有60%的人需要雇请专业人士代理申报，有22%的人需要用报税软件帮助计算。B.美国人在1981年就提出了"废除累进税率，实行单一税率"的设想。
B.
1988年至2006年，美国1最富人群的收入占全国收入的比重从15%上升为22%，但他们的平均税率却从24%降到22.8%。
C.
2011年9月17日美国爆发了占领华尔街运动，声称代表美国99的金融业的贪婪腐败及社会不公。
查看完整题目与答案
【单选题】In a refrigeration system, which of the following statements describes the actions occurring when a solenoid valves, used in conjunction with an unloader head is energized? .
A.
The solenoid valves directs high pressure gas to the valve lifting device raising the suction valve off its seat and causing one specific cylinder to become unloaded
B.
The solenoid valves directs high pressure gas to the underside of the unloading piston, causing it to rise and allowing the recirculating ports to be opened
C.
When the solenoid valve becomes energized, the valve ports become closed, allowing discharge pressure to build up above the piston, shifting it and causing it to unload
D.
The solenoid valve allows the refrigerant to pass from the suction chamber to the top of the unloader piston, causing the piston to lift and unload the cylinder
查看完整题目与答案
【单选题】Which of the following actions cannot influence climate?
A.
Physical actions on land and in the oceans.
B.
Physical actions in the atmosphere.
C.
Physical actions in the space.
D.
Physical actions in the groundwater.
查看完整题目与答案
【简答题】Which of the following actions may NOT be considered as a way of non-verbal communication?
查看完整题目与答案
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