问题
选择题
古人在夕阳西下的时候吟出“柳絮飞来片片红”的诗句,洁白的柳絮此时看上去是红色的,这是因为柳絮( )
A.发出红光
B.发出红外线
C.反射夕阳中的红光
D.折射夕阳中的红光
答案
答案:C
不透明物体的颜色由物体反射的色光决定,柳絮看上去是红色,原因是柳絮反射的是红光,故选C。
古人在夕阳西下的时候吟出“柳絮飞来片片红”的诗句,洁白的柳絮此时看上去是红色的,这是因为柳絮( )
A.发出红光
B.发出红外线
C.反射夕阳中的红光
D.折射夕阳中的红光
答案:C
不透明物体的颜色由物体反射的色光决定,柳絮看上去是红色,原因是柳絮反射的是红光,故选C。
用所给词的适当形式填空. | |
2. ________some more salt to the popcorn,please. 3. You have to______the banana before eating it. 4. Don't ________dirty water into the river. 5. He _________as much feeling into his voice as he could. 6. Finally, ___________on the blender and you'll get some fruit salad. 7. Can you help me___________these tomatoes:? 8. How long does it___________to get to school? 9. I can't come.I___________a really busy day. 10. Mr Green likes to___________pizzas with mushrooms. |