In many English homes people eat four meals a day, breakfast ,lunch, tea and dinner. People have breakfast at any time from seven to nine in the morning .They eat porridge ,eggs , or bread. English people drink tea or coffee at breakfast. Lunch comes at one o’clock. Afternoon tea is from four to five in the afternoon and dinner is about half past seven. First they have soups, and then they have meat or fish with vegetables. After that they eat some other things, like bananas, apples, or oranges. But not all English people eat like this. Some of them have their dinner in the middle of the day. Their meals are breakfast. dinner ,tea, and supper and all these meals are very necessary.
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1912年元旦，中华民国成立后开始采用民国纪年，一位老人出生于民国23年，请问他出生于公元多少年（　　）

熟透了的苹果离开树枝后，总是落向地面，这是由于苹果受____力的作用，力的方向是____．