Thi lớp 6,7 thì toàn 8,9 lấy giải.

Còn thi 8,9 thì làm sao 6,7 lấy giải giờ :))

I took part in "Because of Life's Smile" at my school. We did some things to earn money for homeless people and helpless children. We cooked sweet food, soll some things such as teddy bear, books, and another things. We also made a charity box to earn more money. We did some traditional games are organized by LA34. We made lanterns, moon cake,.. because that day was Mid - Autumn. After that day, we went to the orphanage and elderly social to give money,books and notebooks, new clothes. the best wishes to them. Beside that, we had the best Mid-Autumn.

1. B

2. A

3. A

4. A

4 phân tử khí Oxi: \(2O_2\)

4 phân tử khí Clo: \(2Cl_2\)

0 ; 10 ; 20 ; 30 ; 40 ;......

Có nhiều số chẵn chia hết cho 5