Kneel and beg!! Desperate for the right answer!!

As a parent, I am really careful, and I will definitely teach a good child who is healthy and upward in the future.

With the extreme pollution of our natural environment, diet, clothing, furniture, and housing, infant health has become the most headache for careful parents. But what you're saying is safe and okay.

But beware:1Do not give your child a lot of supplements and supplements. One is that there is no truth, and the other is waste. (Not needed for normally developing infants and toddlers).

2.Be sure that your child is exposed to as much sunlight as possible (not sun exposure). Promotes bone development in infants and young children, and sunlight can promote the absorption of calcium.

3.Try to integrate your child into society as much as possible, using his or her eyes, ears and small hands, which will promote the rapid development of the child's cranial nerves. "Contact" is the ruler that determines how smart a child will be in the future.

4.It doesn't matter how many gray hairs there are, but you should pay attention to whether your child is afraid of light and whether there are white spots on his face or body. If so, immediately go to the hospital to prevent the occurrence of "vitiligo".

The Neijing says that "Yin is the secret of Yang", and infants and young children are the most harmonious of Yin and Yang. (exclusion of heredity).

Take care of it, and you will have a sense of accomplishment in the future. Hahahaha.

Don't worry, it may be blood fever, blood fever is very common in children, give him some banlan root, take it, it should have an effect.

Or eat some warm medicine to cool the blood and remove the fire can also be effective. Remember to be a warm drug. It's not good to go to gunpowder if it's cold, the child can't stand it, and he will have diarrhea.

It's okay, I have a friend who has more gray hair than his dad, and I wonder if it's in the family.

It should be fine, it may be that there is less melanin, you can eat more black fungus, black ants or something.

Ah, I have a good way to let your child dye their hair, it doesn't cost much a year, you don't have to worry, hehe

Too little melanin should be fine

1.Option B, if I'm not mistaken, I've answered in detail in your last question on the chemistry of natural medicines, and you can recall that alkaloids are mostly found in living things in the form of salts in combination with organic acids.

Upstairs it's all wrong. The analysis of these four questions is the same, and I will only analyze the first question. (1) Because b has a constant velocity, a is also a constant velocity.

The resultant force is zero at constant velocity. Therefore, the force analysis of the two objects is carried out separately. Right A:

t1=k1*ma*g=4n to b:f1=k2*(mA+mb)*g+t1+k1*ma*g So:t1=4n f'1=2t1=8n f1=44n (2)40 80 44 (3)20 40 76 (4)56 112 76

（1）4；8；40

It's supposed to be like this.,I don't know if I've been confused.。。。

1. Walk together through thick and thin.

2. Horses are hard to chase.

3 heads are the way.

4. Terminally ill.

5 faces are like ashes.

6. Repeat the mistakes of the past.

7 dumbfounded.

8 out of nothing (T-shirt sleeveless, changed to shirt with sleeves.) Scissors indicate tailor) 9 in one go.

10 beads sink into the sea.

11. Chickens fly and dogs jump.

12 A nest of snakes and rats.

13 oral transmission of the heart (pen and paper means transmission, teaching, heart approval, acceptance) 14 do not wait for me (the middle square is the hourglass - timer, indicating time; People are running, in a hurry) 15 jewels.

7.Dumbfounded 4Terminally ill (uncertain) 11Chicken Fly Dog Jump 12A nest of snakes and rats.

I only know that 3 is the head and the head is the way.

(1) Make a perpendicular line of a straight line L through the three points of the triangle, extend the length of the perpendicular line to the right respectively, and connect to obtain a figure.

2) The top is , and the bottom is

24x-2y=10③

③7x=14，x=2

Substitute x=2

y=-1x=2，y=-1

Draw the symmetrical figure yourself (can't help), make the symmetry points of the three vertices of the triangle to the line separately, and then connect the three points.

Equation: x=2, y=-1