Một dòng điện có cường độ 2A chạy qua dây dẫn có điện trở 20 (Ôm) trong thời gian 30 phút thì nhiệt lượng tỏa ra trên dây dẫn là bao nhiêu?

Choose the best answer.

I think you should buy _____  pack of mineral water instead. And you can also buy _____  snacks such as potato crisps, 3 kilos of mandarins, 2 kilos of apples, 3 bunches of bananas, ______  cookies and soft candies.

Choose the best answer.

We should decorate our living room with _____ orange banner. We also need ________  ribbons, balloons, party hats and costume.

Choose the best answer.

I think that ______ cauliflower is not enough for 3 people. Let’s buy one more.