A.對(duì)近視眼來(lái)說(shuō),就是它的近點(diǎn)
B.對(duì)遠(yuǎn)視眼來(lái)說(shuō),就是它的近點(diǎn)
C.對(duì)近視眼來(lái)說(shuō),就是它的遠(yuǎn)點(diǎn)
D.對(duì)遠(yuǎn)視眼來(lái)說(shuō),就是它的焦點(diǎn)
A.正鏡片
B.負(fù)鏡片
C.凹透鏡
D.平光鏡
A.12mm
B.13mm
C.15mm
D.10mm