问题
填空题
已知关于x的不等式组
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答案
解得不等式组的解集为：a≤x＜2，
因为不等式组只有四个整数解，所以这四个整数解为：-2，-1，0，1，
因此实数a的取值范围是-3＜a≤-2．
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已知关于x的不等式组
|
解得不等式组的解集为：a≤x＜2，
因为不等式组只有四个整数解，所以这四个整数解为：-2，-1，0，1，
因此实数a的取值范围是-3＜a≤-2．
| 完型填空。 |
| A man and his wife arrived in Boston by train．After getting off the train, they walked without an 1 into the outer office of Harvard’s president．So they were stopped by his secretary and kept 2 ． For hours, the secretary took no notice of them, 3 that the couple would finally become disappointed and 4 ．But they didn’t．The secretary finally decided to disturb the president, though 5． A few minutes later, the president walked towards the couple with a 6face．The lady told him, “We had a son that 7 Harvard for one year．He loved Harvard．He was8_ here．But about a year ago, he was accidentally killed．My husband and I would like to 9 a memorial（纪念物）to him, somewhere on campus．” The president wasn’t moved ．Instead, he was 10 ．“Madam,” he said, “we can’t put up a statue for every person who studied at Harvard and died．If we did, this place would look like a 11 ,” “Oh, no,” the lady 12 quickly．“We don’t want to put up a statue．We would like to give a 13 to Harvard．” The president rolled his eyes and 14 at the couple and then exclaimed, ” A building! Do you have any 15 how much a building costs? We have spent over ＄7,500,000 on the campus building at Harvard．” For a moment the lady was silent．The president was 16 , because he could get rid of them now．Then the lady turned to her husband and said quietly, “Is that all it costs to start a 17 ? Why don’t we just start our own?” Her husband nodded． 18 their offer was turned down．Mr．and Mrs． Stanford traveled to California where they founded Stanford University 19 after them, a memorial to a son that Harvard no longer 20 about． |
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