Define ONE wrong word in each sentence.

1. This electric cooker is used to boil rice, not make rice porridge

2. In Holland, people make use of windmills for production wind energy.

3. Chopping uncooked food, please use this separate knife.

4.This car conditioner is installed to keep it cool in summer and making it warm in clod winter.

5. You can use this to find the meaning of a word or leaning some examples of it.

6. This massage chair is used mainly by the elderly to relief pain.

Tìm GTLN, GTNN của hàm số:

y = \(\sqrt{3-3x}+\sqrt{3x+6}+4\sqrt{\left(3-3x\right)\left(3x+6\right)-1}\)

Viết lại các câu sau:

1. I don't ride the bus to the school every morning because t's always so crowded.

-> If.........................

2. the manager didn;t phone the secretary thí morning.

-> The secretary.............................

3. Would rather go to school on foot than take a bus.

-> Would prefer........................................

4. Did Mary buy this beautiful dress?

-> Was................................................

5. No one has signed the cheque.

-> The cheque.........................................

Hòa tan hoàn toàn 17,2 g hỗn hợp kim loại kiềm A và oxit của nó vào 1600g nước được dung dịch B. Cô cạn dung dịch B được 22,4g hiđroxit kim loại khan. Xác định tên kim loại và thành phần % khối lượng mỗi chất trong hỗn hợp.