36. 若六分儀指標桿(Index Arm)上之指標箭頭指在0°及-1°之間,而微分鼓(Micrometer Drum)之讀數為58.5',則六分儀指標差(IE)應為何?(A) (+)1.5'(B) (+)58.5'(C) (–)1.5'(D) (–)58.5'