题目信息
The children in the second grade at a local elementary school scored lower on tests of math skills this year than the second graders did last year. The school board blames the disappointing results on the budget cuts that forced the school to consolidate several classes of second-grade students, thus depriving them of the individualized attention that they had previously enjoyed.
Which of the following, if true, best supports the explanation offered by the school board for the students' lower test scores?
A:Students at other elementary schools in the area also scored poorly on the same test of math skills this year.
B:No new textbooks were purchased by the school board this year.
C:The test that the second graders took this year was not more difficult than the test that the second graders took last year.
D:Students in the third grade at the elementary school performed better in math this year than the third graders did last year.
E:Other schools in the area also experienced severe budget cuts.
参考答案及共享解析
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已选答案：
正确答案：
C:The test that the second graders took this year was not more difficult than the test that the second graders took last year.
explanation: 成绩差的原因是预算减少导致班级合并；支持这个解释的一种思路是证明另一个explanation不成立。C选项对在排除了【成绩差的原因是考试难】这个原因。注意A选项【其他学校的学生今年数学成绩也差】表达的是“成绩差是可接受的”，并没有支持“成绩差的原因是班级合并”。
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题目来源
Manhattan
