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chi len mang ay chu dai qua em ghi ko duoc aj that xin loi chi a.
tham khảo nha
Some people say that they like living in the countryside, the others like living in the city. In my point of view, I prefer living in the countryside for a number of benefits. First of all , It is a quiet and peaceful place. There are a lot of plant species so the air and the food are fresh and clean. We can enjoy a healthy natural condition without worrying much about environmental pollution. We are free to admire the breathtaking landscapes such as huge meadows, peaceful hills or forests. We can also enjoy walking in the forest and picking mushrooms or hunting. Second, There aren't any huge blocks of flats, modern skyscrapers and bothersome traffic jams in the countryside so the air is not polluted. There is no water pollution, either. Moreover, living in the countryside is cheaper than it is in the city, so you can buy many hings at lower prices. The other positive side is the safety. In the rural area the crime rate is much lower. There aren't a lot of housebreaks of burglary and robbery. In the countryside people usually and keep eyes on neighbour's estates. They always react when something strange is happening. Finally, most of the villagers are friendly and hospitable. They are always willing to help each other. Moreover, people in the cities are very susceptible to stress because of pollution, the pressure of work, competitions, etc. In summary, Living in the countryside has many advantages because of fresh air, clean food, specially the people’s friendliness and hospitality.
Đất chua : 3 -6,5
Đất trung tính : 6,5 - 7,5
Đất có tính kiềm : 7,5 - 9
ummm....mình nghĩ bn có thể tham khảo cái câu này=,)
I do my homework trong đó có:
I: S
do: V
my homework: O
hoặc là Peter is reading a novel
Peter: S
is reading: V
a novel: O
:DD
traditional and delicious dishes. All of them easioly bring to anyone's mouth indeed, but as myself, I enjoy spring rolls best. Spring rolls are lightly fried rice - paper rolls, smaller and crispier than Chinese egg rolls but more flavorful. They are filled with highly seasond morsels of crab, shrimp, chopped vegetables, onion, mushroom, vermicelli and eggs. To prepare them, place the above mentioned filling on a thin rice pancake, roll up then fry. Finally, spring rolls, when fully prepared, are wrapped into somes kinds of fresh vegetables, then doused in fish sauce. My mother ussually cooks spring rolls for me, espeicially on important days in year, such as Tet holiday. When I eat them, i feel all of my mother's love that she reserves for me. To me, they're like the most speicial dish in this world.
Ta có: MCaCO3 = 40 + 12 + (16 × 3) = 100g
Trong 1mol CaCO3 có 1mol Ca, 1 mol C và 3 mol O
Do đó: MCa = 1 × 40 = 40g
MC = 1 × 12 = 12g
MO = 3 × 16 = 48g
Thành phần % các nguyên tố có trong hợp chất CaCO3 là:
%Ca = (40/100) × 100% = 40%
%C = (12/100) × 100% = 12%
%O = (16 × 3/100) × 100% = 48%
Vậy ....