27.His mother died of a serious disease when he was a child, for which reason his father
him for a doctor.
A.determined B.intended C.ensured D.guided
26.In order to finish the task in advance she works day and night and doesn’t the cost to her health.
A.guarantee B.decrease C.ensured D.guided
25.Hw always remains next to none in math, giving others a chance to top the list.
A.narrowly B.surely C.rarely D.obviously
24.It is rewarding to be with praise, which takes little effort but brings big cheer to ourselves and others.
A.content B.generous C.patient D.satisfactory
23.A responsible journalist should make sure that all the information come from sources.
A.accessible B.reliable C.relative D.widespread
22.The original painting has been replaced by a fake, and no one knows when the was made.
A.switch B.action C.investigation D.breakthrough
第一节多项选择(共lO小题,每小题1分;满分10分)
从A、B、C、D四个选项中,选出可以填人空白处的最佳选项,并在答题卡上将该项涂黑。
例:To make members of a team perform better, the trainer first of all has to know their and weaknesses.
A.strengths B.benefits C.techniques D.values
答案是A。
21.The constantly arising problems with fool products have shaken people’s of food safety.
A.recognition B.judgment C.confidence D.admission
21.(本小题满分13分)
(文科)已知函数,数列满足
(1)求数列的通项公式;
(2)记,求;
(3)令,若时恒成立,求最小的正整数。
(理科)已知数列的前项和满足
(1)求数列的通项公式;
(2)记,若数列为等比数列,求的值;
(3)在满足(2)的条件下,记,设数列的前项和为,求证:
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