31 某患者調節近點為 33 cm,若其工作距離是 40 cm,假使以調節幅度一半原則,則此患者的暫時加入度為何?
(A)+1.00 D
(B)+2.00 D
(C)+3.00 D
(D)+4.00 D
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統計: A(378), B(52), C(14), D(56), E(0) #2977840
統計: A(378), B(52), C(14), D(56), E(0) #2977840