người ta dựa vào tác dụng gì của dòng điện để có thể mạ vàng cho một chiếc vỏ đồng hồ ? Phải chọn dung dich gì ? Vỏ đồng hồ phải nối với cực nào của nguồn điện ?

Vẽ anime boy and girl ngầu và cute nha

Tìm các luận cứ cho luận điểm: " Dân tộc Việt Nam ta luôn có lòng yêu nước"

giúp mình với

Thuốc thử dùng để nhận biết ion clorua là A quỳ tím B phenolphtalein C AgNO3 D Nano3

Tìm một câu bị động và một câu mở rộng có chủ đề về tinh thần trách nhiệm của người dân trong việc phòng và chống lại dịch bệnh covid-19 Em đg cần gấp ạ

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. A Mission to Mars Have you ever had a dream of traveling to another planet in our solar system? If you have, there is an actual programme that is happening right now, and it hopes to send people to Mars in 2023. Known as the Mars One Mission, it will send a crew of four people on a one -way mission to colonize Mars. Those chosen people will have to be ready to say good-bye to the earth forever, as there will not be a return trip. For the people chosen, they will have to learn to do many different things. First of all, they will be living the rest of their lives with just a handful of other people, so they all must have personalities that allow them to get along. Second, the living quarters that they will have won’t be very spacious, so they will have to deal with that condition as well. If they feel homesick, they will only be able to communicate with people back on the earth via e-mail, video and audio sent back and forth. However, there won’t be any real-time communication. Even at the speed of light, communication between the earth and Mars takes about 20 minutes. Whether the Mars One Mission will actually happen is the big question that a lot of people are asking. There is an enormous skepticism in the science community, and Wired magazine gave the mission a miserable score of two out of ten on its probability scale. However, for those who dream of going to Mars, at least they can say there is a possibility that it could happen. Who might like to go on this mission? A: People who don’t like to communicate B: People with angry personalities C: People who get homesick easily D: People who get along with others

VII.Match each half a sentence in column A with its suitable half in column B. A B 1. The weather is not warm enough 2. He is not old enough 3. The train was not fast enough 4. Tom’s grade was not good enough 5. Mr. Hung is not qualified enough 6. He is not clever enough 7. She is old enough 8. Tom is strong enough a. to go to school. b. to take part in those activities. c. for him to get the scholarship. d. To realize the trick. e. To lift the weights. f. To be accepted to the company. g. For me to go swimming h. For him to arrive on time.

Xin m.n jup em thật sự rất cần gấp

Vì sao nói tóc , lông và móng là sản phẩm của da ?