| 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. [填空题]The passage gives a description of several methods of testing mental ability.
[填空题]This article tells us several different love stories in different countries.
[单项选择]The different phones that can represent a phoneme in different phonetic environments are called the ______ of that phoneme.
A. allophones B. phones C. allomorph D. phonetics [单项选择]The different phones which can represent a phoneme in different phonetic environments are called the （ ） of that phoneme.
A. minimal B. allomorph C. phones D. allophones [填空题]It will take several different insects operating year-round to ___________________________________________.
[填空题]
Manners can be quite different in different countries. In China when
people{{U}} (11) {{/U}}, they often ask each other "Where are you
going " or "Have you had your meal " But in England the{{U}} (12)
{{/U}}is usually about the weather. English people do not ask others about
their ages and never ask how much money they{{U}} (13) {{/U}}. It is
rude to ask "How old are you ", especially to a woman. When someone tells you
"Your English is good", you are expected to say "Thank you." If your{{U}}
(14) {{/U}}is "Oh, no, my English is poor" or "Not at all", you will
make the speaker{{U}} (15) {{/U}}very awkward. Try to remember the
proverb: When in Rome, do as the Romans do. 我来回答: 提交
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