同学们课间经常打闹，有一次小明不小心将健康强壮的甲同学推到，使该同学的后脑撞击在了课桌角上，甲同学当时出现心跳，呼吸停止，尽管实施急救措施，但不幸的是，该同学永远地离开了人世，因此请同学们一定要注意玩闹时的安全，避免类似的悲剧再次发生．请问甲同学主要谁伤到了脑的哪个部位？（    ）

— I'd like to travel to Moscow for vacation.

— Be realistic! For our poor situation at present, we can't _____ a vacation.

补全对话, 每空一句。

Doctor: Good morning! ____

Tom: Tom.

Doctor: ____

Tom: I'm not feeling well. I have a toothache and I can't eat anything.

Doctor: When did it start?

Tom: ____

Doctor: Let me examine you. Open your mouth and say "Ah", please.

Tom: Ah……Is it serious?

Doctor: ____ Just stop eating candies and take the medicine. You will feel better soon.

Tom: How often should I take the medicine?

Doctor: ____

Tom: Thank you.

陈胜、吴广发起的秦末农民战争的地点是在（   ）