Câu 1 Tính khoảng cách thời gian ( theo thế kỉ, theo năm) của các sự kiện ghi trên bảng trong trang 6 SGK so với năm 2016. - XXI -XV =..... thế kỉ - 2019 -1418 =......... năm - XXI - XVIII = ......thế kỉ - 2019 -1789 =......... năm - XXI - I =...... thế kỉ - 2019 -1248 =........... năm - XXI - XII =....... thế kỉ - 2019 -1288 =.......... năm - XXI - X=.......... thế kỉ - 2019 - 1290 = ............năm - XXI - XV = ........thế kỉ - 2019 -1427=......... năm

Fill in the blank with one of the following word/phrae.Sometimes,two answers are possible. Although Despite In spite of However Nevertheless 1............ difficulties,the doctor said that he will save the man 2 Everyone thought that she would accept the offer.........,she turned it down. 3 ............. it is crowded in the rush hour,we decide to go out for dinner 4 The sky was grey and cloudy............. it didn't rain

Đốt cháy fotfo trong bình chứa 11.2 lít khí oxi ở điều kiện tiêu chuẩn thì thu được p2o5, lập phương trình hoá học, tính khối lượng của phốt pho đã tham gia phản ứng, tính khối lượng p2o5 tạo thành

Trong bài học đường đường đói đầu tiên Lớp 6 câu hỏi là trong bài miêu tả về dế choắt như thế nào ?

Mấy bạn văn ơi, giúp mik phần cuối của bài 2 nhà :>

1.I want you to do this exercise.…………………………………………………………… 2.The teacher made us do a lot of homework.…………………………………………………………… 3.I don’t think anyone can do it…………………………………………………………… 4.I want you to leave me alone.…………………………………………………………… 5.Did they say anything interesting?…………………………………………………………… 6.She found the woman crying.…………………………………………………………… 7.What did they pay you for doing the job?…………………………………………………………… 8.I will send you the goods as soon as they are available.…………………………………………………………… 9.People say he was the best writer of his time.…………………………………………………………… 10.Her beauty made him crazy.…………………………………………………………… 11.Children couldn’t have done this damage.…………………………………………………………… 12.You should put your money to good use instead of leaving it idle in the bank.…………………………………

thể tích hình lập phương có cạnh là 8dm

Nhôm tác dụng với dung dịch axit clohiđric (HCl) theo sơ đồ sau: Nhôm + axit clohiđric -----> nhôm clorua (AlCl 3 ) + khí hiđro. Khi cho miếng nhôm tan hết vào dung dịch HCl có chưa 0,2 mol thì sinh ra 1,12 lít khí hiđro(đktc). a, Tính khối lượng miếng nhôm đã phản ứng. b, Axit clohđric còn dư hay không? Nếu còn dư thì khối lượng là bao nhiêu?

Giúp mk vs các cậu ơi mk cần gấp

Rewrite the following sentences beginning with the words given: ❖ The casting committee will select more candidates. More candidates ______________ by the casting committee. 1. The students can’t use cell phones in class. Cell phones .................................................. 2. The workers have to elect a new leader soon. A new leader ...................................................... 3. We should reduce the use of energy to protect the environment. The use of energy ................................................ ❖ The police will arrest the criminals soon. The criminals _________________ by the police soon. 4. Scientists will discover a new vaccine against Ebola in the future. A new vaccine.......................................... 5. The king is going to appoint the new government today. The new government....................................... 6. The engineer is going to design the new buildings this week. The new buildings................................................ ❖ The students have taken three tests so far. Three tests ______________________ by the students so far. 7. The rain has killed many animals recently. Many animals...................................................... 8. The authorities have cancelled all the sporting events. All the sporting events............................................. 9. The teachers have corrected the last exam already. The last exam................................................ 10. The secretary hasn’t sent the messages to the customers yet. The messages....................................... ❖ Zuckerberg started facbook from Harvard. Facebook ___________ from Harvard by Zuckerberg. 11. Edison invented electricity long time ago. Electricity............................................................ 12. A criminal band robbed the central bank last night. The central bank...................................................... 13. The thief stole the bike from the market. The bike................................................ ❖ The workers are making huge efforts to build the tarpaulin. Huge efforts to build the tarpaulin __________by the workers. 14. The maids are preparing the food now. The food........................................................ ❖ They sell Chinese products everywhere. Chinese products ______________everywhere. 15. Professors give lectures in universities. Lectures.................................................................. 16. Students write a monograph before graduation. A monograph....................................