Vì trâu bò ăn phải cỏ có chứa trứng giun sán 

1. visit
2. don't go
3. isn't working
4. is skipping
5. is knocking

quen chua nhin het de

c1

1. No, they don't
2. Yes, they do
3. Hamburgers, bread, noodles, snack oishi
4. Don't good for stomach and overweight
5. Don't eat too much and too fast

a. CTHH: H₃PO₄
PTK: 1.3+31+16.4=98 dvC
b. CTHH: Na₂O
PTK: 23.2+16=62 dvC
c. CTHH: CuSO₄
PTK: 64+31+16.4=159 dvC