Graig Haynes was contaminated with mercury, thus he could give off a strange blue light.
举一反三
- Magenta absorbs green light and reflects ( ) light. A: Purple B: Red C: Blue D: Green
- He ________(turn)off the light. We can leave now.
- He turned off the light and then_____.
- The moon can’t ( ) light by itself. A: give out B: give up C: give off D: give back
- A solution that appears blue absorbs blue light.