+2.00DC×90°与-2.00DC×180°联合后得到()。
A: A+2.00DS/-2.00DC×90°
B: B+2.00DS/-4.00DC×180°
C: C+2.00DS/-4.00DC×90°
D: D-2.00DS/+2.00DC×90°
E: E-2.00DS/+4.00DC×180°
A: A+2.00DS/-2.00DC×90°
B: B+2.00DS/-4.00DC×180°
C: C+2.00DS/-4.00DC×90°
D: D-2.00DS/+2.00DC×90°
E: E-2.00DS/+4.00DC×180°
举一反三
- +2.00DC×90°与-2.00DC×180°联合后得到()。 A: +2.00DS/-2.00DC×90° B: +2.00DS/-4.00DC×180° C: +2.00DS/-4.00DC×90° D: -2.00DS/+2.00DC×90° E: -2.00DS/+4.00DC×180°
- Amblyopia should be suspected as a contributor to decreased visual acuity when ( ) A: Hyperopia ≥ +5.00 DS B: Myopia ≥ -10.00 DS C: Astigmatism ≥ 2.00 DC D: Difference of clyindrical diopter ≥ 1.00 DC
- -4.00×15/-2.00×15=()。 A: -4.00 B: -2.00 C: -6.00×15 D: +6.00×15
- -3.00×180/+2.00×90=(). A: +2.00-5.00×180或-3.00+5.00×90 B: +2.00-5.00×180 C: -3.00+5.00×90 D: +2.00-5.00×90或-3.00+5.00×180
- 智慧职教: -4.00×15 / -2.00 ×15 =( )。