"Explain how you can use that lock to get your box opened without destroyingthe number-lockor asking Hinata for the code. (The box is the property of Poke'mon Ranger Association so please keep it in one piece.)"
28. [數學 Mathematics] 點P的坐標為(-3, 3)。若P對直線 x=1 反射至點Q,則P與Q間之距離為 The coordinates of the point P are (-3, 3). If P is reflected with respect to the straight line x=1 to the point Q, then the difference betweenA and Bis A. 4 B. 5 C. 6 D. 8