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快速判断一个数是否为素数。
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选择合适的单词填空。填写选项即可。（课本P188 Words in use）A.reclaimB.spiralC.terminationD.layoffE.subsistenceF.complyG.donateH.originateI.expireJ.spectrum1. People canned food and old clothes most frequently, but rarely do they think about bringing in underwear — it's one of the most obvious but overlooked needs of the homeless.2. Brian Wood watched his financial life downward just when he thought he had overcome the obstacles which had been dominating his past.3.They are to leave the house with only their personal possessions, for they have got a letter ordering the immediate of their occupancy (居住).4. The company was reportedly going bankrupt and this would result in the of thousands of employees.5. The princess who was brought up in wealth understood that many things that are common and everyday to her are unimaginable luxuries to people on wages.6. Young students should develop a broad of interests, which their parents should encourage and support as best as possible.7. I asked the waitress to refill my coffee cup and she happily repeatedly until I had consumed enough coffee to stay up all night and study for my exam.8. Though she lost the title of female world swimming champion last year, she it this year when she gave it all she could.9. This type of system which in the United Kingdom has been widely used throughout Europe and is gaining in popularity in the United States of America and Japan.10. Failure to make the request will be fatal to the accuser's claim if the relevant limitation period has , unless an extension of time is granted.
In English, if a word begins with [l]or[r], then the next must be a vowel. This is a(n)_____
If two sounds in a language make a contrast between two different words, such as [t] in tie and [d] in die, they are said to be different___.
In English, /ph/ and /p/ occur in different phonetic environments, they are the_________of the same phoneme /p/.
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