40. 球面三角學中,凡涉及邊角互換,必用的定理為下列何者?
(A)疊合定理
(congruence theorem)
(B)畢氏定理(Pythagorean theorem)
(C)極對偶定理
(polar duality theorem)
(D)納皮爾法則(Napier’s rule)
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統計: A(0), B(6), C(79), D(54), E(0) #2849792
統計: A(0), B(6), C(79), D(54), E(0) #2849792