23.使用六分儀時,若測微鼓(Micrometer Drum)之讀數為在弧上1.6',則下列何者正確?
(A)IE off the arc 1.6'
(B)IE on the arc 58.4'
(C)IE on the arc 1.6'
(D)IE off the arc 58.4'
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統計: A(16), B(4), C(69), D(1), E(0) #1194507
統計: A(16), B(4), C(69), D(1), E(0) #1194507