题目:
若时间数列各期的环比发展速度相等,则各期逐期增长量一定相等。
答案:
参考答案:错
解析:逐期增长量不一定相等。
若时间数列各期的环比发展速度相等,则各期逐期增长量一定相等。
参考答案:错
解析:逐期增长量不一定相等。
阅读理解
The singer, Mick Jagger, of the Rolling Stones sings a song that tells people they can't
always get what they want but if we try sometimes we can get what we need. The past years in
my life my parents have told me this saying many times. I've always complained about the quote(引语). Although over time I have told myself to learn from it.
This year my girlfriend flew off to college in West Palm, Florida. This has been a killer for me because I haven't been able to see her and she is having a rough time in school. The last two
months have been hard but we are working through it. I have been trying to get my dad to buy
me a plane ticket to go down there. My dad told me if I brought him some money he would help me pay for the ticket. I started to complain to him because I had no way of getting any money to give him. I spent several days and nights thinking of ways to earn money to go to see my
girlfriend. I finally came to the conclusion that I would get a job and work hard to earn some
money to give to my dad. I applied to Safeway and I ended up getting the job.
I have been working at Safeway for about a month now and work hard to earn money to go to see my girlfriend. The other day my mum had surprised me and told me that she asked her boss
if she could use their business miles(旅费) to buy me a ticket down to Florida for two weeks. I
was very thankful and told her I would help pay for anything that I have to. The thought of me
working hard and getting a job showed my mum that I really cared and was trying my best to be a successful person. I believe that you can't always get what you want but if you try sometimes,
you get what you need.
1. The author's parents often told him the saying quoted from the song because ________.
A. He liked to complain to them about his life
B. They expected him to earn from the singer
C. He always wanted to get everything he wanted
D. They tried to educate him to do things for himself
2. What does the word"killer"underlined in the second paragraph refer to?
A. Something that is quite troublesome.
B. Something that is very difficult.
C. A person who kills purposely.
D. A person who treats women very badly.
3. What can we infer from the passage?
A. The author was lazy and unwilling to work hard.
B. The author's father was too mean to give him money.
C. The author's actual action won support from his mother.
D. The author was unable to tear himself away his girlfriend.
4. By writing the passage, the author tries to show________.
A. we can do nothing without money
B. fathers are strict while monthers are kind
C. it's hard for parents to bring up their children
D. we should try to rely on ourselves for everything
《20世纪80年代以来西方社会心理学新进展》是由()主编的
A.库利
B.乔治·赫伯特·米德
C.威廉·詹姆斯
D.乐国安
南非约翰内斯堡首脑会形成的《约翰内斯堡可持续发展宣言》和( )两项文件,再一次表达了国际社会实现可持续发展和共同繁荣的政治意愿,并在水、生物多样性、健康、农业、能源等领域确定了明确的目标和时间表。
A.《里约热内卢环境与发展宣言》
B.《21世纪议程》
C.《可持续发展首脑会议》
D.《我们共同的环境》
测量的尺度有四个层次,其中哪一种尺度是定性而非定量,不能进行任何算术运算?()。
A.间隔量
B.命名量
C.比率量
D.次序量
施工现场主导机械一台,台班单价1000元/台班,折旧费500元/台班,人工日工资单价100元/工日,窝工补贴50元/工日,由于电网停电,导致停工2天,人工窝工10工日,则施工企业可索赔()元。
A.0
B.500
C.1000
D.1500