Vẽ sơ đò nguyên lý mạch điện điều khiển 2 công tắc 2 cực điều khiển 2 đèn trên nếu cho: 2 cầu chì, 2 công tắc 2 cực, 2 đèn, 1 ổ cắm?

Al =>Al2O3 =>NaAlO2 =>Al(OH)3 =>Al2(SO4)3 =>AlCl3 =>Al(NO3)3 => Al2O3 =>Al

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.