Nguyễn Xuân Minh Hiếu's Profile

Cho mạch điện như hình biết R1 = 8 ôm; R2 = 10 ôm; R3 = x; R4 = 2 ôm UAB = 18V

Tính R3 khi ...

a) Nối C,D bằng vôn kế và vôn kế có hiệu điện thế là 2V

b) Nối C,D bằng Ampe kế và ampe kế có cường độ dòng điện là 0,5A

file nghe -----> https://docs.google.com/forms/d/1EwrSoo9jQ7h3SbOsoETFU2DTLg6jzWMXvyJDGataL0U/viewform?edit_requested=true

ai nghe trả lời giúp mk với, mk đang cần gấp =(

1. A lot of people are worrying about Corona virus. Corona virus could be really (1)__________ , especially older people and people with (2)_________ health conditions.

Câu trả lời của bạn

2. Good news is you can protect yourself. Even if you 're not likely to be seriously (3) ___________ by Corona virus, you may (4) ________ it on to someone who could be.

Câu trả lời của bạn

3. Number 1: Wash your hands more. If you 've been out in a (5) ____________ place, on a bus or a train, wash your hand as soon as afterwards. So that takes about (6) ________ ___________ to get them really clean.

Câu trả lời của bạn

4. Number 2: Avoid (7) _____________ your eyes, nose and mouth. Because that's the way the virus could (8) ________ ______ your body.

Câu trả lời của bạn

5. Number 3: Catching coughs and sneezes. Experts think Corona is spread by (9) ____________ that come out of your nose and mouth. So when you sneeze or cough, catch them with disposable (10) ____________ then bin it.

Câu trả lời của bạn

6. Disposable tissues are better than (11) ___________ that you carry around with you all the time. If you don't have a tissue, sneeze or cough into the crook of your (12) ____________.

Câu trả lời của bạn

7. Number 4: S (13) __________ _________ from people who are ill. And when it comes to (14) ______________, check with the Foreign Office before you plan to go.

Câu trả lời của bạn

8. And these things won’t work when it comes to treating: UV light, Antibiotics, (15) ______________ and saline solution.

Câu trả lời của bạn

9. As for masks, they're (16) _____________ when people are in very close contact with patients. But there’s very little evidence that masks are (17) ___________ in everyday life.

Câu trả lời của bạn

10. If you’ve been coughing or you have a high (18) ______________ , or you are short of breath, you may have the (19) _____________of coronavirus, but you don’t necessarily have coronavirus.

Câu trả lời của bạn

11. But if you think you may do, don't go anywhere, especially not the hospital, (20) ____________ or doctor's. Instead, phone your docdor or use the online NHS 111 Corona virus service.

Câu trả lời của bạn

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