QuestionsⅢ, problem 36-45 (3 points each)
Below is the information from published Journal papers, please try to answer the
following questions.
3. 某射擊遊戲的玩家要避開障礙物射擊目標。今在遊戲畫面
中設立一直角坐標系,以長方形螢幕左下角點 O 為原點,
螢幕下方的邊緣為 x軸、螢幕左方的邊緣為 y 軸,目標物放在點 P(12,10)。畫面中有兩面牆(牆厚度可忽略不計),
一面牆由點 A(10,5) 水平延伸到 點 B(15,5) ,另一面牆由點
C(0,6) 水平延伸到點 D(9,6),如右圖之示意圖。若玩家在點
Q 可直線射擊點 P 的目標物,不會被兩面牆阻擋。下列哪一個選項有可能是點 Q 的坐標?
(A) (6,3)
(B) (7,3)
(C) (8,5)
(D) (9,1)
(E) (9,2)
The holiday season (the month between Thanksgiving and Christmas) is the most important time of the year for logistics.
companies like UPS and FedEx. During this period, they need to cope with high volumes. Both UPS and FedEx struggle to
deliver the surge of packages they receive. Every year, UPS and FedEx are thinking about whether they should add additional
surcharges during this pcak period. Such higher rates could increase the profits of both firms. However, the profits also depend
on the competitor's decisions. Suppose UPS and FedEx make their pricing decisions simultaneously, without any
communication. The payoff matrix during the holiday season of UPS and FedEx is as follows: