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
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
-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
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
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
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
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
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
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;
-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