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1. |
During the detection of the cones by the thin strip of film which one of the following statements is appropriate for the cones and the films? |
A. | Cones are parallel to the strip of the films |
B. | Cones are perpendicular to the strip of the films |
C. | Cones intersects the strip of the films |
D. | Cones are vertically placed over the strip of the film |
Answer» D. Cones are vertically placed over the strip of the film | |