user-avatar
rrssssssssssss
2 năm trước
Qua các kỳ thi học sinh giỏi quốc tế và trong công tác phòng chống dịch covid vừa qua .Em có suy nghĩ về gì về trí tuệ của con người Việt Nam
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Write full sentences from the words and phrases given. 1. Luckily/ there/ no loss/ life/ flood/ last week. ................................................................................................................................................................ 2. It/ not rain/ long time,/ so/ there/ a terrible drought. ................................................................................................................................................................ 3. polluted rivers/ seas/ cannot/ clean up/ overnight. ................................................................................................................................................................ 4. If / they/ use/ electricity/ catch/ fish,/ other/ marine animals/ kill/ too. ................................................................................................................................................................ 5. People/ manage/ rush/ burning house/ it/ collapse/. ................................................................................................................................................................

Câu 5: Đốt cháy hoàn toàn 10,2 gam hỗn hợp A gồm 2 ankan đồng đẳng kế tiếp cần dùng 25,76 lít khí O2 (ở đktc). a. Tính khối lượng CO2 và H2O sinh ra. b. Tìm CTPT của 2 ankan và tính thành phần phần trăm theo thể tích và theo khối lượng của mỗi ankan trong hỗn hợp. Câu 7: Viết PTHH các phản ứng xảy ra khi cho etilen, propen lần lượt tác dụng với các chất sau a. Hiđro/Ni,to b. Nước brom c. H2O/H+ d. Dung dịch KMnO4 Câu 8: Có một hiđrocacbon A là đồng đẳng của etilen. 11,2 gam hidrocacbon A có khả năng làm mất màu nước brom có chứa 32 gam brom. Tìm CTPT, viết các CTCT và gọi tên thay thế của A? Câu 9: Trình bày phương pháp hóa học nhận biết các hóa chất mất nhãn: ankan, anken, ank-1-in a. Các chất khí: etan, etilen, axetilen b. Các chất khí: metan, axetilen, propen c. Các chất lỏng: 2,2,3-trimetylbutan, hex-1-en, hex-1-in Mng giúp mk với ạ. Mk cảm ơn!

Mark letter A, B, C or D on your answer sheet to indicate the best sentence that can be made from the cues given. 1. It/ be said/ Ha Long Bay/ one/ the most interesting/ tourist attractions/ Vietnam. A: It said that Ha Long Bay is one of the most interesting tourist attractions in Vietnam. B: It is say that Ha Long Bay is one of the most interesting tourist attractions in Vietnam. C: It is said that Ha Long Bay to be one of the most interesting tourist attractions in Vietnam. D: It is said that Ha Long Bay is one of the most interesting tourist attractions in Vietnam. 2. Her mother/ suggest/ Mary/ go/ see the dentist. A: Her mother suggests that Mary goes to see the dentist. B: Her mother suggested that Mary went to see the dentist. C: Her mother suggested Mary going to see the dentist. D: Her mother suggested that Mary should go to see the dentist. 3. Mary wanted all of us to visit Po Nagar Cham Towers after lunch. A: Mary suggested visiting Po Nagar Cham Towers after lunch. B: Mary suggested visit Po Nagar Cham Towers after lunch. C: Mary suggests visiting Po Nagar Cham Towers after lunch. D: Mary suggested that we visited Po Nagar Cham Towers after lunch. 4. The local government/ suggest/ build a road/ through Nam Cat Tien Park. A: The local government suggested building a road through Nam Cat Tien Park. B: The local government suggested build a road through Nam Cat Tien Park. C: The local government suggested to build a road through Nam Cat Tien Park. D: The local government suggest building a road through Nam Cat Tien Park. 5. “Why don’t you ask your parents for advice, Tom?” said Phong. A: Phong suggested Tom asking his parents for advice. B: Phong suggested asking Tom’s parents for advice. C: Phong suggested that Tom should ask his parents for advice. D: Phong suggested that Tom asked his parents for advice. 6. It/ be claimed/ The Cham towers/ Binh Dinh province/ biggest/ Southeast Asia. A: It is claimed that The Cham towers in Binh Dinh province to be the biggest in Southeast Asia. B: It is claimed that The Cham towers in Binh Dinh province be the biggest in Southeast Asia. C: It is claims that The Cham towers in Binh Dinh province is the biggest in Southeast Asia. D: It is claimed that The Cham towers in BinhDinh province is the biggest in Southeast Asia. 7. They believe that the best time to visit the complex of Hue Monuments is in April. A: It is believe that the best time to visit the complex of Hue Monuments is in April. B: It was believed that the best time to visit the complex of Hue Monuments is in April. C: It is believed that the best time to visit the complex of Hue Monuments is in April. D: The best time to visit the complex of Hue Monuments was believed to be in April. 8. The doctor said, “You really ought to rest for a few days, Veronica.” A: The doctor suggested that Veronica should rest for a few days. B: The doctor suggests that Veronica should rest for a few days. C: The doctor suggested resting for a few days. D: The doctor suggested that Veronica rested for a few days.

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team