[填空题]
A 3.30-mm-wide beetle is viewed with a4m ,cfq +*iojmo3rtf0 tyzm8l( c-ogz5kg4md1*t m) b ;dodk; 9.50-$cm$-focal-length lens. A normal eye views the image at its near point. Calculate
(a) the angular magnification, = $\times$
(b) the width of the image, mm
(c) the object distance from the lens. cm from the lens