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发布时间：2022-01-07
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Simple moving averages and weighted moving averages are examples of judgmental forecasting.
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更多“Simple moving averages and weighted moving averages are examples of judgmental forecasting.”相关的问题
第1题
_____tells a simple but very moving story in which four people living in a Puritan community are involved in and affected by the sin of adultery in different ways.
第2题
If the amplitude of a system moving in simple harmonic motion is doubled, which of the following quantities doesn’t change？
A、Total energy.
B、Maximum speed.
C、Maximum acceleration.
D、Period.
第3题
A mass of 0.20 kg, hung from a spring with a spring constant of 80.0 N/m, is set into an u
p-and-down simple harmonic motion. If the mass is displaced from equilibrium by 0.10 m and released from rest, what is its speed when moving through the equilibrium point？
点击查看答案
A、0
B、1.4 m/s
C、2.0 m/s
D、3.4 m/s
第4题
Which one is talking about Internet connectivity？A.For many businesses, support for simp
Which one is talking about Internet connectivity？
点击查看答案
A.For many businesses, support for simple accounting transactions and basic financial management tasks just isn’t enough.
B.With the whole world moving to the Internet, it’s only logical that accounting software should follow the crowd.
C.The accounting program vendor should either offer add-on modules that allow customers to slap extra capabilities to its product, or a migration path to a full ERP environment.
D.If data is lost or tampered with you stand to lose time, money, business secrets (such as sales or profit data) and, if the damage is severe enough, your company.
第5题
From thefollowing sentences, which features of EST text can you know in the following answ
ers？ ⑴ All substances will permit the passage of some electric current, provided the potential difference in high enough. ⑵ Television is the transmission and reception of images of moving objects by radio waves. ⑶ The rusting of metals is accompanied by increase in weight and by absorption of material from air. ⑷ Its transmission over a long distance causes some loss of energy.
点击查看答案
A、Extensive use of passive voice
B、Tendency towards nominalization
C、Post-position of Attributives
D、Use of the simple past and present tense
第6题
Autism is a general【76】te______for a group of brain disorders that limit the development o
f social and communication skills, which【77】med______professionals call autism spectrum disorders.
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Experts say autism is permanent and cannot be cured. But there are ways to treat it that they say can【78】re______the severity, and the academy says the earlier treatment begins, the【79】be______ the results.
The medical group released two reports Monday with detailed information to help doctors【80】id______autism. Chris Johnson at the University of Texas Health Science Center in San Antonio was one of the authors, who says doctors should look for signs of autism when they【81】exa______babies at eighteen months and twenty-four months.
Doctors traditionally【82】con______the possibility of autism only if a child shows delayed 【83】sp______ or unusually repetitive behaviors. These may be clear signs of it, but they usually do not appear until a child is two or three years old.
Parents could answer a list of written questions about their baby, and then the doctor could 【84】per______tests as simple as observing the baby’s ability to follow a moving object with its eyes. Experts say failing to watch a moving object may be a sign of autism.
Doctors and parents can also look for behaviors that are normal in babies under one year of age. For example, does the baby appear to【85】re______to a parent’s voice？ Does the baby make eye contact？ Does the baby wave or point at things？
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第7题
Bionics is a recently developed branch of science, which has tremendous potential for impr
oving the life of mankind in our contemporary society. Bionics can be described as the study of systems in living creatures and the application of the knowledge gained from this study to the improvement of various kinds of man-made systems. The term bionics was coined around 1960, and much of what is known about the science of bionics has been discovered since about 1970.
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Some researchers recently have studied the eyes of the common frogs and have discovered that a frog's eyes only find moving things such as insect-shaped objects and large, threatening objects. As a result of studying the eyes of frogs, scientists have constructed a simple electronic model of a frog's eyes which can track airplanes circling above an airport and then provide information to computer-run air traffic control systems. Someday such electronic eyes may provide the means to automatically guide automobiles by providing information about objects moving toward the automobile. Other scientists have studied the compound eyes of some insects and crabs and have built a seeing machine that is a simple model of the horseshoe crab eye.
The hearing of a number of creatures also has been studied extensively so that hearing machines can be developed. Bats have unusual hearing which can extend into the ultrasonic (超声的) range. The dolphin also has been studied extensively, and dolphins are able to navigate through water extremely effectively. Radar and sonar(声 纳) systems which are used to help ships and planes navigate have been based on the sonar systems of both bats and dolphins.
Which of the following could be the best title？
A．Electronic Eyes
B．The Science of Bionics
C．Sonar Systems
D．The Hearing of Some Creatures
第8题
When prices are increasing, which inventory method will produce the highest cost of go
A.FIFO.
B.LIFO.
C.Averag
D.Cost of goods sold will not chang
E.
第10题
The supply and demand of agricultural products are ______ balanced.A．on purposeB．on averag
The supply and demand of agricultural products are ______ balanced.
A．on purpose
B．on average
C．in advance
D．in general
