单项选择题

Percentage of students who reported spending time on homework
and watching television

 

In 1996, what percent of fourth-graders did between 1 and 2 hours of homework per day（）

A. 5%
B. 15%
C. 25%
D. 40%
E. 55%

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单项选择题
Let P and Q be points which are two inches apart, and let A be the area, in square inches, of a circle which passes through P and Q. Which of the following is the set of all possible values for A（）

A. 0＜A
B. 0＜A ≤π
C. A=π
D. A＞π
E. A ≥π
单项选择题
For how many positive integers m ≤ 100 is (m -5)(m -45) positive（）

A. 45
B. 50
C. 58
D. 59
E. 60
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