单项选择题

A total of 40 tourists went on a trip．If 18of the tourists visited site X，18 visited site Y．and 8 visited both site X and site Y，how many visited neither site X nor site Y（）

A. 4
B. 10
C. 12
D. 22
E. 28

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单项选择题
The integers between 1 and 100，inclusive，are put in list A if they are divisible by 2and in list B if they are divisible by 3．How many integers in list A are—not in list B（）

A. 11
B. 16
C. 25
D. 33
E. 34
单项选择题
In a soccer league，if there were 10 teams，and each team played each of the other teams 16 times，how many games did each team play（）

A. 144
B. 140
C. 134
D. 125
E. 106
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