2. 外语
  3. PQ = OQ = 5 Column A Column B The area of region OPQ 10

PQ = OQ = 5 Column A Column B The area of region OPQ 10

admin2009-05-19  66
问题
PQ = OQ = 5

Column A                              Column B
The area of region OPQ                10
选项 A、if the quantity in Column A is greater
B、if the quantity in Column B is greater
C、if the two quantity are equal
D、if the relationship cannot be determined from the information given
答案D
解析 本题的正确答案为(D)。△OPQ面积=1/2×OQ×PQsinθ=12.5sinθ，θ是QO与PQ的夹角。因为△OPQ的面积随θ的大小而变化，所以此题为无法判断。
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