The 3.7-kilometer-long ancient walls of Taiyuan county have been decorated with 141 groups of lanterns made by some 300 craftspeople who designed the Chinese lantern festiv独特的我作文300个字The Lantern Festival is a festival celebrated on the fifteenth day of the first month in the lu Lantern Festival, children go out at night to temples carrying paper lanterns and solve rid。
匿名用户
The 3.7-kilometer-long ancient walls of Taiyuan county have been decorated with 141 groups of lanterns made by some 300 craftspeople who designed the Chinese lantern festiv独特的我作文300个字The Lantern Festival is a festival celebrated on the fifteenth day of the first month in the lu Lantern Festival, children go out at night to temples carrying paper lanterns and solve rid。
最佳答案：人眼睛已经适应白天这种白色的太阳光，蓝色led发的蓝色光偏离太阳光太多，对眼睛肯定是有伤害，不过短时间没什么影响，若长时间就有影响啦！最佳答案：市面上的紫光灯一般都是短波的紫光灯，用于医院消毒，没有直接照射也只能说效果不是特别好，但是不能说完全没有伤害。可是紫外线只要一张纸就可以隔开。