皖南八校2010届高三年级第二次联考数 学 试 题(理)（In eight school 2010 grade second students in Mathematics (Science)）.docVIP

皖南八校2010届高三年级第二次联考数 学 试 题(理)（In eight school 2010 grade second students in Mathematics (Science)） In eight school 2010 grade second students Mathematics examination questions (reason) Examinee attention: 1., this paper is divided into parts (selection questions) and volume II (non choice questions) two parts, a total of 150 points. The exam time is 120 minutes. 2. before the answer, please candidates will be sure to answer the paper on the left sealing line of the project to fill in clearly. Candidates are required to write the answers to all the questions and write them on the answer sheet. They will not answer the questions in the examination paper. Reference formula: Cone volume formula: in which the S is the base area and the H is high Volume 1 (50 total of multiple-choice questions) A choice: the big questions, 10 items, each item of 5 points, a total of 50 points. For each question there are four options, one is in line with the requirements of the subject. 1. if the complex number is real, then the value of XY is () A.3 B.-3 C.0 D. 2. the known collection, then the shadow part on the right, is the collection A. B. C. D. 3. the following propositions are correct A. image constant crossing point (0, -2) Necessary and insufficient conditions for B. The negation of the C. proposition is: D. is the necessary and sufficient condition for increasing functions P is the 4. known points on parabolic fixed point, point to line distance is d P, and the minimum value is |PA|+d (is) A. B.4 C. D.5 5. this year eleven in the motherland 60th anniversary birthday, ten key Park in Beijing will be free garden activities, Beihai park free of charge for a day, at 6:30 in the morning of 2 people into the park, the first 30 minutes of 4 people in and out of 1 people, second people and 30 minutes in 8 out of 2 points. Third minutes in 16 and 30 out of 3 people, fourth people and 30 minutes in 32 out of 4 people...... Follow this rule, and by 11:30 the number of people in the park is