问题
单项选择题
Passage One
For light ______, it takes about 27,000 years.
A．from the earth to reach the sun
B．from the sun to reach the earth
C．from the middle point of the galaxy to reach the sun
D．from the moon to reach the middle point of the galaxy
答案
参考答案：C
解析：
[分析]： 事实细节的找寻和判断。 根据原文For light from the middle point of the galaxy to reach the sun，it takes about 27，000 years可知从星系中点到太阳，光要走上两万七千年。由此可见C项内容与原文相符，该项为正确答案。[解题关键] 根据题干数字迅速定位原文相关信息。