• 2022-06-09 问题

    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

    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

  • 2022-06-08 问题

    一老年病人,试验性近附加为+1.00D,测得的NRA为+1.00D, PRA为-0.50D,那么其最终的精确近附加度数应为 A: +0.50D B: +0.75D C: +1.00D D: +1.25D E: +1.50D

    一老年病人,试验性近附加为+1.00D,测得的NRA为+1.00D, PRA为-0.50D,那么其最终的精确近附加度数应为 A: +0.50D B: +0.75D C: +1.00D D: +1.25D E: +1.50D

  • 2022-06-07 问题

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

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

  • 2022-06-12 问题

    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

    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

  • 2022-06-15 问题

    一薄透镜前后两面光焦度分别为+1.00D<br/>-3.00D则该透镜的总光焦度为____() A: +2.00D B: +1.00D C: -3.00D D: -2.00D

    一薄透镜前后两面光焦度分别为+1.00D<br/>-3.00D则该透镜的总光焦度为____() A: +2.00D B: +1.00D C: -3.00D D: -2.00D

  • 2022-06-06 问题

    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

    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

  • 2022-05-30 问题

    必然事件的概率值是() A: -1.00 B: 0.00 C: 1.00 D: 10.00

    必然事件的概率值是() A: -1.00 B: 0.00 C: 1.00 D: 10.00

  • 2021-04-14 问题

    欲配制1.00 L 1.00 mol·L-1的NaCl溶液,可将58.5 g NaCl溶于1.00 L水中

    欲配制1.00 L 1.00 mol·L-1的NaCl溶液,可将58.5 g NaCl溶于1.00 L水中

  • 2022-06-17 问题

    7. 绝对远视度数是 A: +2.50D; B: +3.00D; C: +5.50D; D: +1.00D;

    7. 绝对远视度数是 A: +2.50D; B: +3.00D; C: +5.50D; D: +1.00D;

  • 2022-06-07 问题

    -5.00-1.00×15/+4.00+2.00×15=() A: -1.00-1.00×105 B: -1.00×15 C: -1.00-1.00×15 D: -1.00×105

    -5.00-1.00×15/+4.00+2.00×15=() A: -1.00-1.00×105 B: -1.00×15 C: -1.00-1.00×15 D: -1.00×105

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