单项选择题

How many students are either juniors or males or both

A. 678
B. 766
C. 948
D. 1,130
E. 1,312
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单项选择题
If a and b are the lengths of the legs of a right triangle whose hypotenuse is 10 and whose area is 20,what is the value of (a +b.2
A. 100
B. 120
C. 140
D.180
E.200
单项选择题
Dan drove home from college at an average rate of 60 miles per hour. On his trip back to college, his rate was 10 miles per hour slower and the trip took him one hour longer than the drive home. How far is Dan’s home from the college
A. 65 miles
B. 100 miles
C. 200 miles
D. 280 miles
E. 300 miles
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