【简答题】如图所示,直线AB、CD相交于O,OE平分∠AOD,∠FOC=90°,∠1=40°,求∠2和∠3的度数.
【简答题】如图所示,已知AB=AD,∠BAD=90°,AC=AE,∠CAE=90°. 求证:(1)CD=BE.(2)∠FOC=90°.
【简答题】已知:如图,AB⊥CD于点O,∠BOE=40°,OF平分∠AOE,求∠FOC的度数.
【单选题】一名远视患者,远视力为0.8,先作主观验光,用+2.5DS的镜片后,远视力提高到1.5,再慢慢增加镜片的度数至+5.5DS时远视力仍然保持1.5,再增加镜片的度数远视力下降,用阿托品麻痹使睫状肌调节放松后检影结果为+6.5DS该患者的显性远视度数为()
【单选题】It is not surprising that a philosophy borrowed from business should see its principal focus within education as the furthering of the connection with business and industry. Moreover, when a philosoph...
A.
business and education finds so much in common
B.
politicians expect education to be like a business
C.
the education world is managed by people from the business philosophy
D.
those who come from the business world think education should serve industry needs
【单选题】一名远视患者,远视力为0.8,先作主观验光,用+2.5DS的镜片后,远视力提高到1.5,再慢慢增加镜片的度数至+5.5DS时远视力仍然保持1.5,再增加镜片的度数远视力下降,用阿托品麻痹使睫状肌调节放松后检影结果为+6.5DS该患者的可矫正远视度数为()
【单选题】一名远视患者,远视力为0.8,先作主观验光,用+2.5DS的镜片后,远视力提高到1.5,再慢慢增加镜片的度数至+5.5DS时远视力仍然保持1.5,再增加镜片的度数远视力下降,用阿托品麻痹使睫状肌调节放松后检影结果为+6.5DS