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2 năm trước
Một bình nóng lạnh có ghi 220V- 1100W đưoc sử dụng với hiệu diện thế 220V. a) Tính cường độ dòng điện chạy qua bình khi đó. b) Tính thời gian để đun sôi 10 lít nước từ nhiệt độ 20°C, biết nhiệt dung riêng của nước là 4200J/kg.K và nhiệt lượng hao phí là rất nhỏ. c) Tính tiến điện phải trả cho việc sử dụng bình như trên trong 30 ngày, biết rằng thời gian sử dụng trung bình mỗi ngày là 1 giờ và giá tiền điện là 1000đ/kW.h Giúp mk câu 6 ik mai mình kt 1tiết r
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Read the passage and do the tasks below : Based on the original The Voice of Holland , The Voice of America , or sooner The Voice , officially aired on NBC on April 26 , 2011 aiming to find new singing talent and soon became a big hit. The Voice process includes Blinds Audition , Battles Rounds , Knockout Rounds , and the final live performance phase . Only those fifteen and over are eligible for the competition . There are four coaches , themsleves well-known performing artists , who critique contestants't performances and form their own teams of contestants and give them guidance through the rest of th season . Coaches also have the power to decide on which contestants to advance in the next rounds . One celebrity key advisor gives assistance to coaches and their teams during the preparation process . The coaches and the televison audience have equal power to decide who moves on to the final four phase . However , the winner is determined by votes from the television audience by online voting on the official website , SMS text and iTunes stores purchase of the contestants' performances . The declared winner receives US$ 100000 and a record contract with Universal Music Group . As an incredible success in the both Holland and the U.S , The Voice has been franchised out to many other countries in the world , and has been a big rival to the Idol franchise . Part 1 : Choose the appropriate meaning for each word from the text : 1. to air A . to broadcast on television B. to be produced as a TV program 2. a big hit A . a successful record of a song B. a great success 3. a season A. a method of doing something B. a TV contest 4. a live performance A. a performance made when people are watching , not recorded B. a performance recorded and posted on the Internet 6. television audience A. people who come and watch directly B. people who watch through the TV screen 7. to franchise A. to vote for a favourite contestant B. to sell the formula to others Part 2 : Choose the best answers to the following questions : 1. What is TRUE about The Voice program ? A. It originated in Holland . B. The Voice of Holland first aired on NBC . C. It was a failure in Holland . 2. What is a requirement for contestants ? A. Contestants must be at least 1 years old . B. Contestants must be at least 13 years old. C. Contestants must be at least 15 years old . 3. Who decide on the winner of each season ? A. Coaches and television audience . B. Coaches and the celebrity key . C. Television audience . 4. By what means can people vote for their favourite contestant ? A. Text messages , internet , and post letters . B. Text messages and online buying of the contestants ' performances . C. Youtube views and online voting on the official website . 5. What is the prize for winning a The Voice season ? A. A large amount of money and becoming a The Voice coach . B. A record contract worth US 100000 . C. A large amount of money and chance to work with a music company .

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