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Inflation Business and government leaders also consider the inflation rate to be an important general indicator.Inflation is a period of increased spending that causes rapid rises in prices.___(21) your money buys fewer goods so that you get__________(22) for the same amount of money as before, inflation is the problem、There is a general rise_________(23) the price of goods and services、Your money buys less、Sometimes people describe inflation as a time when “a dollar is not worth a dollar anymore”. Inflation is a problem for all consumers、People who live on a fixed income are hurt the_________(24).Retired people, for instance, cannot count on an increase in income as prices rise. Elderly people who do not work face serious problems in stretching their incomes to____________(25)their needs in time of inflation、Retirement income_________(26) any fixed income usually does not rise as fast as prices.Many retired people must cut their spending to___________(27) rising prices.In many cases they must stop ___________(28) some necessary items, such as food and clothing.Even_________(29) working people whose incomes are going up, inflation can be a problem.The_________(30) of living goes up,too.People who work must have even more money to keep up their standard of living, just buying the things they need costs more.When incomes do not keep_______________(31) with rising prices,the standard of living goes down.People may be earning the same amount of money, but they are not living as well because they are not able to buy as many goods and services. Government units gather information about prices in our economy and publish it as price indexes__________(32) the rate of change can be determined.A price index measures changes in prices using the price for a_________(33) year as the base.The base price is set at 100,and the other prices are reported as a_________(34) of the base price.A price index makes ________(35) possible to compare current prices of typical consumer goods,for example,with prices of the same goods in previous years. A.Because B.While C.Since D.When ______A.much B.little C.more D.less ______A.in B.on C.at D.to ______A.best B.lease C.most D.worst ______A.meet B.obtain C.care D.acquire ______ A.or B.and C.excluding D.including ______ A.live up to B.catch up on C.put up with D.keep up with ______ A.to buy B.buying C.having bought D.from buying ______ A.for B.to C.of D.if ______ A.price B.level C.cost D.standard ______ A.race B.pace C.speed D.step ______ A.last B.given C.fixed D.definite ______ A.portion B.fraction C.proportion D.percentage ______ A.it B.us C.one D.you
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【判断题】G40是数控编程中的刀具左补偿指令
A.
正确
B.
错误
【单选题】不属于细胞表面受体的是:
A.
离子通道
B.
酶连受体
C.
G蛋白偶联受体
D.
核受体
【单选题】下列关于均数的标准误的叙述,错误的是()
A.
是样本均数的标准差
B.
反映样本均数抽样误差大小
C.
与总体标准差σ成正比,与√n成反比
D.
增加样本含量可以减少标准误
E.
其值越大,用样本均数估计总体均数的可靠性越好
【单选题】不属于细胞表面受体的是()
A.
核受体
B.
G蛋白偶联受体
C.
离子通道型受体
D.
生长激素受体
【单选题】纳税人销售货物时,发生价款和增值税合并收取的现象,计算增值税不含税销售额的公式是( )
A.
含增值税的销售额/(1-增值税税率或征收率)
B.
含增值税的销售额/(1+增值税税率或征收率)
C.
含增值税的销售额/(1-消费税税率)
D.
含增值税的销售额/(1+消费税税率
【单选题】关于总体均数的估计,下列叙述错误的是
A.
总体均数的估计包括点估计和区间估计两种方法
B.
由于点估计方法简单,实际应用中常常采用点估计进行总体均数的估计
C.
由于点估计无法反映抽样误差的影响,因而一般不推荐采用该方法
D.
有些情况下,研究目的决定研究者所关心的仅仅是单侧的置信限,此时可以计算单侧置信区间
【判断题】G40是数控编程中的刀具左补偿指令。
A.
正确
B.
错误
【单选题】不属于细胞表面受体的是:
A.
离子通道受体    
B.
酶连受体    
C.
G蛋白偶联受体    
D.
核受体
【单选题】不属于细胞表面受体的是( )
A.
离子通道耦联型受体
B.
酶耦联型受体
C.
G-蛋白耦联型受体
D.
核受体
【单选题】下列关于均数的标准误的叙述,错误的是
A.
是样本均数的标准差
B.
反映样本均数抽样误差大小
C.
与总体标准差成正比,与根号n成反比
D.
增加样本含量可以减少标准误
E.
其值越大,用样本均数估计总体均数的可靠性越好
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