There are several different methods
that can be used to create a forecast. The method a forecaster chooses depends
upon the experience of the forecaster, the amount of information available to
the forecaster, the level of difficulty that the forecast situation presents,
and the degree of accuracy or confidence needed in the forecast. The first of these methods is the persistence method; the simplest way of producing a forecast. The persistence method assumes that the conditions at the time of the forecast will not change. For example, if it is sunny and 87 degree today, the persistence method predicts that it will be sunny and 87 degree tomorrow. If two inches of rain fell today, the persistence method would predict two inches of rain for tomorrow. However, if weather conditions change significantly from day to day, the persistence method usually bre A. (A) Imagination of the forecaster. B. (C) Necessary amount of information. C. (B) Practical knowledge of the forecaster. D. (D) Degree of difficulty involved in forecasting. [单项选择]
Forecasting Methods There are several different methods that can be used to create a forecast. The method a forecaster chooses depends Upon the experience of the forecaster, the amount of information available to the forecaster, the level of difficulty that the forecast situation presents, and the degree of accuracy or confidence needed in the forecast. The first of these methods is the persistence method; the simplest way of producing a forecast. The persistence method assumes that the conditions at the time of the forecast will not change. For example, if it is sunny and 87 degree today, the persistence method predicts that it will be sunny and 87 degree tomorrow. If two inches of rain fell today, the persistence method would predict two inches of rain for tomorrow. However, if weather conditions change significantly from day to day, the persistence method usually breaks down and is not the best forecasting method to use. A. Imagination of the forecaster. B. Necessary amount of information. C. Practical knowledge of the forecaster. D. Degree of difficulty involved in forecasting. [填空题]The passage gives a description of several methods of testing mental ability.
[单项选择]In C language, there are several methods of communicating data between functions, one of which is by()。
A. arguments B. variables C. messages D. constants [填空题]This article tells us several different love stories in different countries.
[简答题]All of us can change our behavior to fit different situations. We are festive, often noisy, at weddings and birthday celebrations, sympathetic at funerals, attentive at lectures, serious and respectful at religious services. Even the clothes we wear on these different occasions may vary. Our table manners are not the same at a picnic as in a restaurant or at a formal dinner party.
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