某粮油零售市场2010年1月至10月花生油和粳米的销售量及其市场价格如下:请根据上述

题型:单项选择题 案例分析题

问题:

某粮油零售市场2010年1月至10月花生油和粳米的销售量及其市场价格如下:

请根据上述资料,从备选答案中选出正确答案。

利用步长为3的简单移动平均法,计算2010年3月份粳米市场价格的长期趋势为()。

A.(2900+2800+3100)/3=2933 

B.(3000+3200+2900)/3=3033 

C.(3200+2900+2800)/3=2967 

D.(2800+3100+2780)/3=2893

考点:统计师考试统计学和统计法基础知识统计师初级统计学和统计法基础知识真题2011年
题型:单项选择题 案例分析题

作为一种附合合同,保险合同是由()在订立合同时作出是否同意的意思表示。

A.保险人

B.投保人

C.被保险人

D.受益人

题型:单项选择题 案例分析题

Today is National Bike-to-Work Day. And on New York City’s jammed streets, people are cycling on hundreds of miles of new bike lanes. But New York’s widespread efforts to make streets safer for bikes have also left some locals complaining about the loss of parking spots and lanes for cars.

When the weather is good, Aaron Naparstek likes to pedal(用踏板踩)his two young kids to school on a special Dutch-made bicycle. Naparstek supports the new lane.

Aaron: The bike lane on Prospect Park West is really introducing a lot of new people to the idea that it’s possible to use a bike in New York City for transportation or to travel around. This is what 21st century New York City looks like.

Prospect Park West is still a one-way road, but where it used to have three lanes of car traffic, now it has two, plus a protected bike lane. Supporters say that makes the road safer for everyone, including pedestrians, by slowing down cars and taking bikes off the sidewalk. But some longtime residents disagree. Lois Carswell is president of a group called Seniors for Safety. She says the two-way bike lane is dangerous to older residents who are used to one-way traffic.

Lois: We wanted a lane — the right kind of lane that would keep everybody safe, that would keep the bikers safe. But we want it to be done the right way. And it has not been done the right way.

Craig Palmer builds bars and restaurants in Manhattan. I was interviewing him for a different story when he brought up the bike lanes all on his own.

Craig: I think the biggest problem is that Bloomberg put all these bike lanes in. You took what used to be a full street and you’re shrinking it.

Then there are the Hasidic Jews in Williamsburg, Brooklyn, who forced the city to remove a bike lane through their neighborhood. But polls show that the majority of New Yorkers support bike lanes by a margin of 56% to 39%. Bicycle advocate Caroline Samponaro of Transportation Alternatives calls that a mandate.

Caroline: If this was an election, we would have already had our victory. The public has spoken and they keep speaking. And I think, more importantly, the public is starting to vote with their pedals.

小题1:What does Aaron mean by saying “This is what 21st century New York City looks like.”? 

A.There are hundreds of miles of new bike lanes in 21 st century New York City.

B.Drivers slow down their cars and bikes are taken off the sidewalk in New York.

C.Bikes are used as a means of transport in 21 st century New York City.

D.It’s possible to make the streets safe for pedestrians in New York.小题2:According to the passage, which of the following CANNOT support the opponents of these new bike lanes?   

A.Drivers lose parking spots and lanes for cars.

B.The two-way bike lane is dangerous to older residents.

C.We took what used to be a full street so the road is broader than before.

D.The removal of one bike lane through a neighbourhood in Brooklyn was not supported by the majority of New Yorkers.小题3:“A mandate” in Paragraph 8 was referred to a demand or command from ______.

A.the authority

B.the public

C.the supporters

D.the government小题4:What of the following might be the best title of the passage?

A.Ride on National Bike-to-Work Day

B.A New Bike Lane Appears in New York

C.A Bike Lane Divides New Yorkers

D.Who Wins an Election

题型:单项选择题 案例分析题

避免对系统非法访问的主要方法是()。

A、加强管理

B、身份认证

C、访问控制

D、访问分配权限

题型:单项选择题 案例分析题

旱生植物的叶一般小而厚,角质层发达,气孔多;而沉水植物的叶片一般小而薄,角质层薄或无角质层,没有气孔。这种现象是生物对环境的

A.适应

B.反射

C.应激性

D.新陈代谢

题型:单项选择题 案例分析题

两图所示天气系统过境后,出现的共同天气现象是()

A、气温降低,气压升高

B、气温升高,气压降低

C、都出现连续性降水

D、天气转晴

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