Hệ tiêu hoá của người gồm những cơ quan nào?

Cho tam giác ABC có 3 góc nhọn nội tiếp đường tròn tâm O.các đường cao AD,BE,CF cắt nhau tại H, gọi K là điểm đối xứng với H qua AC Vẽ hình hộ thôi ạ

Giải giúp em câu này với mọi người ơi

Tính hợp lý: d. 252-84:21+7 e. 4.8.125.27 f. (871-28)+(-2004+28-871) g. (-37)+54+(-70)+(-163)+246

III. Rewrite these sentences, using RARELY, SELDOM or LITTLE. 1. One rarely find good service these days. …………………………………………………… 2. She has rarely traveled more than fifty miles from her village. ………………………………………………… 3. It is very unusual for a military campaign to have been fought with so little loss of life. …………………………………………………… 4. It is unusual for the interior of the island to be visited by tourists. …………………………………………………… 5. Public borrowing has seldom been so high. ……………………………………………… 6. They had seldom participated in such a fascinating ceremony. ………………………………………………………… 7. They little suspected that the musical was going to be a runaway success. ……………………………………… 8. The embassy staff little realized that Ted was a secret agent. ……………………………… 9. She didn’t realized what would happen to her next. ………………………………………………………… 10. I didn’t think that one day I’d be appearing in films rather then just watching them. ……………………………… IV. Rewrite these sentences, using IN, AT , UNDER, or ON. 1. Keith certainly can’t be held responsible for the accident. ……………………………………… 2. The children themselves are not in any way to blame for the disaster. ………………………………… 3.The existence of extraterrestrial is not confirmed by the report. …………………………… 4. I was never shown how to operate the machinery. ………………………………… 5. He never suspected that she was a witch. …………………………………………………………………………………… 6. There has never been a time when the English language was not in a state of change. …………………………………………………………………………………... 7. Miss Weaver will not be offered the job under any circumstances. …………………………………………………………………………………… 8. You should not send money to us by post under any circumstances. …………………………………………………………………………………… 9.We can’t exchange tickets in any circumstances. …………………………………………………………………………………… 10.I won’t go out that way to visit him again on my account! …………………………………………………………………………………… V. Rewrite these sentences, using inversion with NOT. 1. He is my friend as well as yours. ………………………………………… 2. He booked tickets for the afternoon performance and the evening performance as well. …………………………………………………………………………………… 3. Burglars stole a thousand pounds’ worth of electrical goods, and left the flat in an awful mess. …………………………………………………………………………………… 4. Tony was not only late, but he had left all his books behind. …………………………………………………………………………………… 5. You will enhance your posture and improve your acting ability on this course. …………………………………………………………………………………… 6. It isn’t worth considering his suggestion for a moment. …………………………………………………………………………………… 7. She didn’t shed a tear when the story ended in tragedy. …………………………………………………………………………………… 8. The manager not once offered us an apology. …………………………………………………………………………………… 9. She made no sound as she crept upstairs. …………………………………………………………………………………… 10.He only thought about having a holiday abroad after he retired. ………………………………………………………………………………… VI. Rewrite these sentences, using inversion with ONLY. 1. I only realized how dangerous the situation had been when I got home. ………………………………………………………………………………… 2. It wasn’t until last week that the Agriculture Minister admitted defeat. ………………………………………………… 3. I understood Hamlet only after seeing it on the stage …………………………………………………… 4. They didn’t get round to business until they had finished eating. ……………………………………… 5. They had to wait for twelve hours before their flight left. …………………………………………… 6. I didn’t realize who he was until later ……………………………………… 7. The door could not be opened without using force. ………………………………… 8. I won’t agree until Tom’s apologized. ………………………………………… 9. To get the 40% discount, you must buy all twelve books at the same time. ………………… 10.The only way you can become a good athlete is by training hard every day. …………………………… VII. Rewrite these sentences, using inversion with SHOULD. 1. If the Government were forced into another election, it would be the favourite to win. …………………………… 2. If you should wish to make an appointment to see Dr Simons, she is available between 9.00 and 11.00. ………………………… 3. If you should have further problems with your printer, contact your dealer for advice. ………………………………… 4. If you should decide to accept the post, you will be expected to start work on 1st April. …………………………………… 5. If we hear any further news, we will be in touch immediately. ……………………………… 6. If you wish to take advantage of the offer, kindly tick the box on your order form. …………………………………… 7. If the film should be a post office success, they may be sequel. ………………………………… 8. If you should change your mind, there will always be a job for you here. ………………………………………

Cho tam giác ABC có 3 góc nhọn nội tiếp đường tròn tâm O.các đường cao AD,BE,CF cắt nhau tại H, gọi K là điểm đối xứng với H qua AC Vẽ hình hộ thôi ạ

Cho 2017 số khác 0 a1;a2;a3;a4;..... thỏa mãn a2^2=a1.a3; a3^2=a^2.a4;,,,a2016^2=a2015*a2017 CMR a1^2016+a2^2016+a3^2016+...+a2016^2016/ a2^2016+a3^2016+a4^2016+...+a2017^2016=a1/a2017 Mong mng giúp, hứa vote 5 sao_+ cảm ơn đầy đủ( mik đang cần gấp

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Viết lại theo đều kiện loại 3 Ai giúp em với :>

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