A.兩面同樣清晰 B.兩面同樣模糊 C.白點(diǎn)對準(zhǔn)P面清晰 D.紅點(diǎn)對準(zhǔn)P面清晰
A.30˚ B.15˚ C.10˚ D.5˚
A.柱鏡軸向 B.柱鏡度數(shù) C.球鏡度數(shù) D.隨意選取