Hi,everybody.My house based in flat land .First face of house near 7 national street.It’s large about 50 square metre.Around my house has many trees,flower .It contains two floors.The ground foor has five rooms include one living room,two bedrooms,one kichen room.and one bathroom.Upstairs has one room for me anf a room for reading book.
In the living room has a sony television,a radio,and armchair.When a visitor come my family,we invite they to seat in here.
Welcome you to my room.I will introduce for you.I love it because it has multi function.Include A computer is connecting FPT network with fast speed ,you can access internet, watch film by ephim.com,listen all kind of music.What about other devices,oke,A radio,a airconditioning with fress air.Althought near street,but quiet.It ‘s good to learn for me. From my room,you can see sky with blue trees lines,particulary you can see a large lake .Wow.Beautiful.
If you visit my house,You can’t imaging what about happen to your’eyes.You will scream that ” oh my god,one house in my dream”.

Lên google tự dịch nhé

What is my favorite sport? My favorite sport to participate in is actually swimming, and I used to do it competitively when I was younger. Now I just do it for fun and for exercise, but my favorite sport to watch is soccer or football, depending on where you're from. I had a really good time watching the world cup this year. It was very exciting and very interesting, so I was really happy about that.

In recent years, the problem of environmental pollution has become a serious problem in big cities in our country. So, what are reasons and possible measures for this problem?
Nowadays, we are living in a city with high population density, so domestic waste is the first reason. Then many people’s social
consciousness is not high. In several areas, they throw rubbish on streets, canals and rivers. It is easy for us to see rubbish of all kinds floating on the water. Moreover, uncultured people even “ ke w er” in the public place.
Now, let’s come to other reasons. Our city is overloaded with vehicles that expel a lot of smoke and dust. This contributes to the heat of the air, and causes pollution.
Besides that, in several places, trees have been cut down to have room for buildings, hotels, or supermarkets. This makes the atmosphere in our city muggy and stuffy.
In addition, many plants and factories send out waste into canals or poisonous gas into the air.
Last but not least, the drainage system in our city is very old and downgrade, so it is always flooded whenever it rains.

Thus, how can we solve this problem? Let’s talk about it.

Cho dòng điện xoay chiều chạy qua đoạn mạch AB có sơ đồ như hình bên, trong đó L là cuộn cảm thuần và X là đoạn mạch xoay chiều. Khi đó, điện áp giữa hai đầu các đoạn mạch AN và MB có biểu thức lần lượt là u_AN = 30 2 cosωt (V) và u_MB = 40 2 cos(ωt – π/2) (V).  Điện áp hiệu dụng giữa hai đầu đoạn mạch AB có giá trị nhỏ nhất là

A. 16 V.                    

B. 50 V.                 

C. 32 V.                 

D. 24 V.