试题题干
Directions: Read each of the following sentences carefully, and choose A,B,C or D that has the closest meaning to the underlined word or phrase.
On the earth, our atmosphere diffuses light so that, when the sun is up, light seems to be everywhere.（）
参考答案
正确答案：
试题解析
sends out in every direction 向四面八方。在地球上，我们的大气扩散光，这样，当太阳升起时，光似乎无处不在。