cao nguyên xếp tầng cao thấp khác nhau

1. Which bridge is the newest ( new ) in Da Nang ?

2. We often decorate ( decoration ) our house to prepare for Tet.

3. The school has big building ( build) and mordern equipment.

4. Students like to study English with foreign teacher( teach ).

5. You should make your house look beautiful ( beauty) at Tet.

6. Ha Long Bay is famous for its beautiful ( beauty) scenery. It is one of the natural ( nature ) wonders of the world.

7.Tet is the time for family gathering ( gather )

Mạch rây nằm ở vỏ cây

3. xét 2 trường hợp:

-nếu x<2 thì /x-2/=2-x.nên ta có 3x-4+2x= 3-5(x+1) khi đó x=1,2

-nếu x>=2 thì /x-2/=x-2.thay vào biểu thức ta có x=2/3

công phượng hối tiếc chỉ đc vao5p cuoi