Real Time Live 4D Results - Magnum4d, Damacai, Sportstoto,

power 4dIn collaboration with HAPPY POWER. Only 300PCS Produced. Features: Full Size 36x18; Our Champion-Grade Speed + Control Surface; Soft Rubber AntiTranscript. Question 39 If the power of a lens is − 4.0 D, then it means that the lens is a (A) concave lens of focal length −50 m (B) convex lens of focal length +50 cm