Một cái thùng dạng hình chữ nhật có chiều dài 5dm, chiều rộng 3dm và chiều cao 4dm. Người ta sếp các hộp hình lập phương có cạnh 1dm vào trong thùng. Hỏi có thể sếp đc nhiều nhất bao nhiêu hộp để đầy thùng.

Số sánh A=444 mũ 555 và B=555 mũ 444

Tìm x X x 9,9 + X : 10 = 20,06 GIÚp mik / cảm ơn

hãy nêu tên các sinh tố tan trong nước và các sinh tố tan trong chất béo, sinh tố nào ít bền vững nhất? cho biết cách bảo quản

|97$\frac{2}{3}$ -125$\frac{3}{5}$| +97$\frac{2}{5}$ -125$\frac{1}{3}$

cho các chữ số:0;1;2;3. lập các số có hai chữ số khác nhau từ các chữ số trên: tính tổng các số lớn nhấtcos hàng chục là 1;2;3 vừa viết được:

Chứng minh tam giác ABC cân. Tính BC. Chứng minh AO là trung trực...

từ M ngoài ( O ; R ) vẽ 2 tiếp tuyến MB MC cát tuyến MEF chứng minh MB bình = ME.MF

1. If I _______ this, I’ll go to the university next summer. ​A. pass ​B. to pass ​C. had passed ​D. passed 2. If you _______ my position, what would you do? ​A. are ​B. will be ​C.were ​D. would be 3. If I had taken that English course, I _______ much progress. ​A. had made ​B. would have made​C. made​D. would make 4. If you _____ to my advice, you _______ in trouble now. ​A. listened / were not​​B. listen / are not​ ​C. had listened / would not have been ​D. had listened / would not be 5. If it _____ last night, it _______ so hot today. ​A. rained / is not​​B. was raining / were not​ ​C. had rained / would not have been​ D. had rained / would not be 6. _______ we invested in telecommunication industry, we would be rich now. ​A. Had​B. Were​C. Would​D. Should 7. If I hadn’t stayed up late last night, ________. ​A. I wouldn’t have been tired now ​B. I wouldn’t have tired now ​ ​C. I wouldn’t tired now ​​D. I wouldn’t be tired now 8. If you _____ breakfast, you wouldn’t be hungry now. ​A. would have​B. would have had​C. had​D. had had 9. “ ________ anyone ring while I’m away, please take a message.” A. Should​B. May​C. Will​D. Would 10. Without your help, I ________ the technical problem with my computer the other day. A. wouldn’t solve​B. couldn’t have solved​C. could solve​D. can’t solve 11. ________we invested in the oil industry two years ago, we would be wealthy by now. ​A.​When​​​B. Had​​​ C. Unless​​ D. Although 12. I would be very rich now ____ working long ago. A. if I gave up​B. if I wouldn’t give up​C. were I to give up​D. had I not given up 13. ___________, I’d have told you the answer. A. If you asked me​​​​​B. You had asked me​ C. Had you asked me​​​​​D. Unless you asked me 14. ____ money, he would buy a new car. A. If he has​B. Were he to have​C. Was he to have​D. If he do have 15. ____ any object, the plan will be considered. A. If​B. Do​C. Should​D. Might

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