＋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°
＋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°
相关考题：
规则撒光眼处方：+3.00DS/-1.00DC*90°,规范写法是（ ）。A.+3.00DS/+2.00DC*90°B.+2.00DS/+1.00DC*90°C.+2.00DS/+1.00DC*180°D.+3.00DS/+2.00DC*180°
透镜+5.00DS，联合透镜-3.00DC*90 o的结果为（ ）。A.+8.00DS/+3.00DS*180 oB.+2.00DS/+3.00DC*180 oC.+2.00DS/-3.00DC*90 oD.+3.00DS/-2.00DC*90 o
请将+1.00DS/+2.00DC×90根据透镜的光学恒等变换原则转换成另外一种球柱联合形式A、+1.00DS/+2.00DS×180B、+3.00DS/-2.00DC×180C、+3.00DS/-2.00DC×90D、+2.00DS/+2.00DC×180E、+2.00DS/-2.00DC×90
检影时，下面哪项只需要一个镜片就能中和（）A．-3.00DS/+1.00DC*180B．+3.00DS/-1.00DC*180C．-3.00DS/+2.00DC*180D．+3.00DS/-2.00DC*180
11、双光镜片远用屈光度为-0.50DS/-2.00DC×180，近用屈光度为+0.50DS/+2.00DC×90，则下加光度为+3.00D