[单选题]
A person cannot see clearly objects more than 70.0 cr4urna7 a5yp.m 7fx( cm away. What power wya0)eg;c t+/ zk;fv i-hwwf8of lens should be prescribed if the glass is to be worn 1.00 cmg)0 a;f-zk;vifeww ty hw+8c / in front of the eye?
A. $1.45 \; D$
B. $-1.45 \; D$
C. $0.0145 \; D$
D. $-0.0145 \; D$
Post time 2024-1-26 22:03:25