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white of paper shinning through thin washes of pigment. ? A. Beauty B. Visibility ? C. Color D. Brightness Vocabulary questions ? 例題 2 ? Most TV sets e with remote controls. They use infrared technology. Infrared is imperceptible, whereas the light from the TV screen is visible. ? A. touchable B. treatable ? C. believable D. invisible Vocabulary questions ? 例題 2 ? Most TV sets e with remote controls. They use infrared technology. Infrared is imperceptible, whereas the light from