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Hello friends! The reasons are as follows: due to his own reasons, he studied hard and his grades must be on the high side, which is positive.

However, due to his good grades, the treatment he encountered in his study life was definitely different from that of others. This stage is formed during high school. In psychology, this stage is called the social development stage.

This period is a transitional and critical phase. In view of his current state, he is lonely at this stage. It's not that he caused it, it's because he stood high, and the height was unbearable, that's a truth.

When I entered the university, my self-styled personality was no longer suitable for the normal needs of university communication. In this university, it is actually a small social formation. Love, qualifications, and relationships are all developed and enriched at this stage.

It's a pity that Huang didn't get good college psychological counseling, so he still used his previous way of dealing with communication. Thus, communication fails.

The extremely good grades and the extreme failure of communication caused a huge contrast and brought his rebellious character into full play. It's normal for him to do these things, combined with his character and current situation!

Method: There must be a person of the same age, but older than him, and he is more convinced, to talk to him in order to exchange ideas. The highlights of the exchange are as follows:

1: From the big picture: life is broad, there is no need to be narrow, tolerance is big, because we are men.

2: From the small aspect: When entering the society, you must let go of your self-esteem, know how to deal with things tactfully, don't be a genius, be a talent.

3: To live, the principle to be followed is: there are five big characters floating in the sky: this is not a thing.

4: There is no need to compare with others, we have to work hard, but also be able to bend and stretch, because our future needs to be dominated by ourselves, and we will be better tomorrow!

Among other things, the time relationship, that's all, it is important to broaden his social network and improve his communicative skills, it is recommended to let him watch the movie: the magic remote control!

Everything will be fine!

Mainly due to family background, resulting in a more introverted personality, plus sensitivity, few friends, a lot of things to bear by yourself, depressed

The first question is a series of equal differences, and the second question should be done using the grouping summation method.

You try it first!

The third question is that I can't read it clearly, can I write it conveniently? Thank you!

Last year there was + this year's = total.

Kilograms per bead * number of beads = total kilograms.

3。Zhao Jin erected.

Kilograms per frog * number of frogs = total number of seeds 240

Set up small cargo loading x tons.

5x=10x=2

Set up children and children to use cloth x meters for each set.

30x=100

30x=48

x=Attached:"* Multiply.

Because the tension of each point of the pulley rope is the same, the tension of each rope is so.

Number of pulley ropes*

So the number of ropes in the pulley group is 5.

75% at 5 roots

4 roots = so highest.

PS: The meaning of the last sentence of the question is that you have to take into account the situation of a rope, because the tension of the rope is equal to the gravitational force when a rope.

Solution: (1) a(6,0)(1 point).

b(6,2)(2 points).

c (0,2) (3 points).

Q(3,1)(1 point) is obtained from the rectangular nature

Substituting the coordinates of p(0, )q(3,1) into y=kx+b respectively to get , 2 points).

The functional expression of the straight line l is ;

3) From the question, fm is the intersection of the straight line and the x-axis, when y=0, x=1, m(1,0), om=1, am=5, by the central symmetry of the rectangle, cn=am=5, bn=om=1, through n as ne x-axis in e, then ae=bn=1, me=am-ae=5-1=4, and ne=2, in rt men, , connect aa'Intersection of l and f, af l is obtained by axisymmetric properties (as shown in Figure 2), i.e., af mn, aa'=2af, which in turn connects AN, and in AMN, AF mn=AM NE, AA'=, over a'Make a'd x-axis is in d, then ada'afm (a right angle of equal opposites and a common angle) i.e. , ad=2, od=6-2, at rt aa'd, by a'(4,4) (3 points), put a'The coordinates of (4,4),b(6,2), and c(0,2) are substituted into y=ax2+bx+c, respectively, and the solution is obtained, and the solution is obtained, and c=2, and the a', b, c three points of the parabola function expression is (4 points) I hope it helps.

Solution: The intersection of y=x and xy=1 is (1,1), 1 x 2,1 x y x.

Primitive = (1,2)xdx (1 x,x)ydy=(1 2) (1,2)x(x -1 x)dx=(15 4-ln2) 2.

FYI.

It's simple, and it's good if you're doing this and that