There's a punctuation question. Who's smart~ Balken, a famous American social psychologist, once asked everyone to write an autobiography in short words at a banquet. Everyone wrote it. One of them, a dejected young man, gave balken a wordless autobiography. There were only three punctuations in the whole article: - There are only three punctuations in balken's reply Do you know the meaning of wordless autobiography? Please come back quickly,

There's a punctuation question. Who's smart~ Balken, a famous American social psychologist, once asked everyone to write an autobiography in short words at a banquet. Everyone wrote it. One of them, a dejected young man, gave balken a wordless autobiography. There were only three punctuations in the whole article: - There are only three punctuations in balken's reply Do you know the meaning of wordless autobiography? Please come back quickly,

"-!": a dash (DASH), a sad sigh (exclamation point), in the end, only the end (full stop)
",.:" youth is a small station in life, with a long way to go and a bright future (ellipsis), "prodigal son does not change his gold" (question mark)? "

The story of punctuation, short. Urgent

The eldest mother once told me a story: previously, a scholar lived in an ancient temple and worked hard. At night, when he was enjoying a cool in the yard, he heard someone calling him. He agreed. When he looked around, he saw a beautiful woman's face on the wall, smiling at him and disappearing. He was very happy, but he was able to see through the mechanism for the old monk who came to talk at night, He must have met "beautiful snake". This is a monster with a human head and a snake body. He can call people's names. If he agrees, he will come to eat this man's meat at night. Naturally, he is scared to death, but the old monk says it's OK. He gives him a small box and says that he can lie on his pillow as long as he puts it on his pillow. Although he does the same, he can't sleep, Rustle! It was like wind and rain outside. He was shaking, but he could hear it
Then, the old monk said, this is a flying centipede. It can suck the brains of snakes, and the beautiful snake was killed by it
In this passage, the full stop, comma, colon and semicolon naturally break the sentences, and the narration is rhythmic; the use of exclamation mark, question mark and dash enhances the narrative tone, which is very emotional. After reading this passage, it seems that people feel that they are listening to mother Chang's story, Lu Xun's tempering of punctuation is an important factor

Use of punctuation marks
On microblog, different groups show different characteristics: "Post-70s" are good teachers and create in-depth topics, "post-80s" never stand by, have a high degree of participation, and "post-90s" are basically entertainment. What's the problem?

On microblog, different groups show different characteristics: "Post-70s" are good teachers and create in-depth topics; "post-80s" never stand by and have a high degree of participation; "post-90s" are basically entertainment

What is the greatest common factor of 30 and 15______ The least common multiple is______ ．

30 △ 15 = 2, that is, 30 and 15 are multiple, then the greatest common factor of 30 and 15 is 15, and the least common multiple is 30

In the triangle ABC, BC = 1, ∠ C = 120 °, cosa = 2 / 3, find ab

Because cosa = 2 / 3, Sina = (radical 5) / 3
According to the sine theorem, we can get the following results
AB/sinC = BC/sinA
So AB = BC * sinc / Sina = 1 * (radical 3 / 2) / (radical 5 / 3)
=3 * (root 15) / 10

A natural number is either odd or even, or prime or composite ()

Any natural number is either prime or composite

If the intersection point of the image of the linear function y = K1X + 4 and y = k2x-3 is on the X axis, then the value of K1 / K2 is?

-4 / 3, because there is an intersection point on X, suppose that point is (a, 0), bring in two straight lines, namely k1a + 4 = 0, k2a-3 = 0, a = - 4 / K1, a = 3 / K2. So K1 / K2 = - 4 / 3

Make the following sentences plural
1.This is my sister
2.That is his brother
3.what is that
4.Ls this your friend
5.that isn't a book

1.This is my sister
These are my sisters.
2.That is his brother
Those are his brothers.
3.what is that
What are those?
4.Ls this your friend
Are these your friends?
5.that isn't a book
Those aren't books.

It is known that the parabola y = 4,3x & # 178; + BX + C passes through a (3,0), B (0,4)
(1) The analytical formula of the parabola is obtained;
(2) If the other intersection of the parabola and the x-axis is C, the coordinates of the symmetric point C 'of the point C with respect to the line AB are obtained;
(3) If point D is a point in the second quadrant, with point D as the center and tangent to x-axis, Y-axis and straight line AB at points e, F and h respectively, ask if there is a point P on the symmetry axis of the parabola, so that the value of | ph-pa | is the maximum? If there is, find the maximum; if not, explain the reason

(1) Substituting the coordinates of a (3,0) and B (0,4) into y = 4,3x & # 178; + BX + C, we get 0 = (4 / 3) * 3 ^ 2 + 3B + C, 4 = C, and the solution is b = - 16 / 3. So the analytic formula of the parabola is y = (4 / 3) x ^ 2 - (16 / 3) x + 4 (2). Let the analytic formula of the straight line AB be MX + NY + L = 0, and substituting the coordinates of a (3,0) and B (0,4) into a (3,0), B (0,4) respectively

Is it true that the angles opposite the two sides and the longer side correspond to the same obtuse triangle congruence

For example: there is a long stick AB and a short stick a'd, nail one of them together, take point B as the end point to do the ray BD, form an obtuse triangle abd (∠ bad as the obtuse angle), and then rotate ad clockwise with point a as the center to make its end point