Phản ứng nào sau đây không tạo ra muối Fe(III)? A. Fe tác dụng với dung dịch HCl. B. Fe2O3 tác dụng với dung dịch HCl. C. Fe3O4 tác dụng với dung dịch HCl. D. Fe(OH)3 t/d với dung dịch H2SO4.

nêu ví dụ về khai báo hằng và khai báo biến

Rewrite each sentences begining as shown. Do not change the meaning: 1- Two men stole the old Ialy’s handbag.-> The old Iady was robbed...................................... 2- John finds photography interesting. -> John is ..................................................................... 3- Helen has a good knowledge of car engines. -> Helen knows a lot....................................... 4- The food in France is famous -> France is ............................................................................ 5- I’d like to thank your brother for his help. -> I am very grateful .......................................... 6- Can you and Stephen share this book, please? -> Can you share this book ........................? 7- I find studying all night rather difficult. -> I’m not used to .................................................. 8- Harry feels frightened when he sees a snake. -> Harry is afraid .......................................... 9- I’m sorry about breaking your camera -> Please forgive me ................................................ 10- Peter knows how to draw well. -> Peter is good .................................................................

ba đường thẳng aa^',bb^',cc^ cùng đi qua điểm o hãy nêu tên các cặp góc đối đỉnh nhỏ hơn góc bẹt

Tính giá trị lớn nhất -x2-4x-2

I. Choose the best answer: 1. Does your sister like _________? A. cooks B. cooking C. to be cooked D. being cooked 2. I’ll begin _________ this novel later. A. read B. to reading C. reading D. to read 3. Would you like _________ to the party with us? A. come B. to come C. coming D. came 4. Ann likes ______but she hates______ up. A. cook/ washing B. to cook/ wash C. cooking/ washed D. cooking/ washing 5. I’d love ______coat like that. A. have B. to have C. having D. has 6. Mrs. Green prefers ______TV to ______to the cinema. A. watching/ go B. to watch/ going C. watching/ going D. watches/ go 7. I like______ school by bus, but I hate ______in the rain and wait for it. A. go/ to stand B. to go/ stand C. going/ standing D. went/ stood 8. I'd like______ somewhere different for a change. A. to go B. going C. go D. to have gone 9. She is interested in _______ to music. A. listen B. to listen C. listening D. listened 10. Nam dislikes _____ volleyball. A. to play B. playing C. plays D. play 11. Children shouldn't_______ up late. A. stay B. stays C. to stay D. staying 12. She wants ______ walk there. A. walk B. to walk C. walking D. to walking

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Giúp em với em không giải được ạ

Vĩ tuyến có độ dài lớn nhất trên bề mặt trái đất là??

Mình đang cần một số bài tập Nhân đa thức, khai triển hằng đẳng thức để ngày mai mình làm kiểm tra 15 phút Ai có thì gửi cho mình nhé Lưu ý : Có đáp án