单项选择题

In the figure above, the radius of circle O is 3, and m∠AOB=60. What is the perimeter of the shaded region（）

A.A
B.B
C.C
D.D
E.E

<上一题目录下一题>

热门试题

单项选择题

Of people 20 years of age or older, approximately how many more males than females were unem-ployed in 1997？（）

A. 150,000
B. 300,000
C. 750,000
D. 1,200,00
E. 2,600,000

单项选择题

（）

A、 if the quantity in Column A is greater
B、 if the quantity in Column B is greater
C、 if the two quantities are equal
D、 if it is impossible to determine which quantity is greater