• 2022-06-06
    角膜曲率仪测定的水平径线为8.0mm,垂直径线为7.8mm,则散光为()。
    A: —1.00*180
    B: —1.00*90
    C: +1.00*90
    D: +1.00*180
  • A,C

    内容

    • 0

      25℃时,水的离子积是() A: 1.00×10-14 B: 1.00×10-7 C: 1.00×1014 D: 1.00×107

    • 1

      填料密封中,填料压盖与轴套的直径间隙为()mm。 A: 0.65~0.80 B: 0.75~1.00 C: 0.60~0.80

    • 2

      -6.00/+5.00=() A: -11.00 B: -1.00 C: +1.00 D: +11.00

    • 3

      下列透镜中有发散作用的是() A: +3.00D B: +4.00D C: -3.00/+1.00×180

    • 4

      As of today, the spot exchange rate is €1.00 = $1.60 and the rates of inflation expected to prevail for the next year in the U.S. is 2% and 3% in the euro zone. What is the one-year forward rate that should prevail? ( ) A: €1.00 = $1.6157 B: €1.6157 = $1.00 C: €1.00 = $1.5845 D: $1.00 × 1.03 = €1.60 × 1.02