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2006年高考理综全国卷第30题(22分)成为今年一道很有争议的试题,大家普遍反映难度大,学生不容易答对、答全,因此得分不高。试卷统计结果均分7.77,难度系数0.38。该题属于实验设计步骤的完善、预测结果及分析预测结果的试题,体现了新课标理念。【例】为了验证叶片在光合作用和呼
The 2006 National College Entrance Examination in the National Vol. 30 (22 points) has become a very controversial test this year. It is generally difficult for students to report. The students are not easy to answer correctly and answer the whole question, so the score is not high. The statistical results of the test paper were divided equally into 7.77 and the degree of difficulty was 0.38. The title belongs to the improvement of the experimental design steps, the prediction results and the analysis of the prediction results, reflecting the concept of the new curriculum. 【Example】 In order to verify the leaves in photosynthesis and call