Help write, doesn t need to be too good?

Beautiful spring.

Spring has arrived, Grandpa Winter and we quietly say goodbye, Spring Girl walks towards us, and all the little animals are happy.

You see, the birds on the branches seem to be in a game, all chirping and singing. The ice on the surface of the river has melted, and the water has become clear and bright again, and you can see the beautiful fish swimming freely in the water.

Look, the willow tree by the river hangs down the long silk strips of Changchun, and the breeze blows, as if the little girl is dancing, and I can't help but remind me of the ancient poem written by He Zhizhang: "The jasper is shaped into a tree high, and ten thousand green silk threads hang down." I don't know who cut out the thin leaves, and the spring breeze in February is like scissors.

The spring breeze in February blows gently on my face, like my mother's hand caressing it kindly. People who like sports have flown kites in the park. Spring is so beautiful, I love spring!

Even if you don't have a wealth value, you still want people to protect you, and you want to be beautiful.

1: Common Programme.

2: At the founding ceremony, *** stared at the establishment of the People's Republic of China and Brother Chunguo, and the Chinese people have stood up since then. It marked the founding of the People's Republic of China and ushered in a new era in Chinese history.

3: Agriculture, handicrafts, capitalist industry and commerce. The private ownership of the means of production has been transformed into the people's public ownership, and the socialist system has been basically established in our country.

<> solution: 25(1) Pass the point P as PC OB, and cross the extension line of the OB at the point C, as shown in Figure 1 in the figure above

From the question setting, we can get: pq oa, and p is the point on the aoc bisector, and there is pq=pc[The property theorem of the angle bisector: the distance from the point on the angle bisector to both sides of the angle is equal].

Both sides of APQ are met by PA and PQ and PB and PC on both sides of BP

pa⊥pb,pq⊥pc,∠apq=∠bpc.Theorem: If the two sides of one angle are perpendicular to the two sides of the other, then the two angles are equal

Right-angle apq right-angle bpc

pa=pb.

bc=qa,pc=oq=pq,ob=oc-bc=oq-qa=pq-qa <1>

Again. oa=oq+qa=pq+qa <2>

1>+<2> get:

The quantitative relationship between the line segments ao, bo, and pq is:

ao+bo=2pq。

2) Kaiqing passes the point p as pc ob, and hands over the ob to the point c, as shown in Figure 2 in the figure below

From the question setting, we can get: pq oa, and p is the point on the qoc bisector, and there is pq=pc[The property theorem of the angle bisector: the distance from the point on the angle bisector to both sides of the angle is equal].

Both sides of APQ are met by PA and PQ and PB and PC on both sides of BP

pa pb, pq pc, pisunchai paq= pbcTheorem: If the two sides of one angle are perpendicular to the two sides of the other, then the two angles are equal

Right Angle PAQ Right Angle PBC

pa=pb.

That is, the conclusion is established;

But the conclusion about the quantitative relationship between the line segments ao, bo, pq

AO+BO=2PQ is not valid, and there is a conclusion about the quantitative relationship between AO, BO, and PQ in the line segment:

ob>ao+pq.

<> is composed of a triangle with a large side to a large burning angle, and a large angle to a large side.

It's not hard to prove.

Width: 500 10 is equal to 50 (meters).

Area: 50 times 80 equals 4000 (square meters).