Cho mạch điện gồm ba điện trở R1=25ôm, R2=R3=50ôm mắc song song với nhau, điện trở tương đương của đoạn mạch là giá trị nào trong các giá trị A.12,5ôm B.50ôm C.75ôm D. 250ôm

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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.

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

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