题目

—Sorry I didn't come to your party yesterday.—It's OK. You didn't break your promise _____, right? A . on purpose B . at once C . by mistake D . after all 答案：A唐僧在取经的途中遇到了危险，被妖怪施法后藏在一枯井中，孙悟空向观音求救，观音告诉他：一年中只有一天阳光会直射到井底，到时不救，恐有灾难．请问是在我国什么地方的什么时间（　　）A．23.5°S-冬至日B．23.5°S-夏至日C．23.5°N-冬至日D．23.5°N-夏至日