The love of functions and derivatives

"The exam time is up, please stop answering the paper—"

The students in the examination room reluctantly stopped the 0.5 ink markers in their hands, and stared at the answer sheet reluctantly, with tears in their eyes, as if the girl who complained was about to bid farewell to her lover, and then they watched the big hands of the invigilator Simply and quickly beat the mandarin ducks - cruelly separate himself from the answer sheet of the college entrance examination that "determines the fate of one's life".

The sun was shining outside the examination room, the steam was steaming, and the sky was burning on the back. People who were hot felt that it was a waste of saliva to say more words.

A high school is the test center for the college entrance examination, and there is a sea of ​​people outside the gate. The dense crowd of people can make intensive phobia sufferers run away and surrender.You sing me and the insects and cicadas chirping, the overlapping parents’ conversations are so noisy, it’s like a mosquito net in the middle of the night that can’t be found when the light is turned on, and can’t be turned on when the light is turned off, but you can clearly hear it buzzing Buzzing, annoying mosquitoes flying around my ears.

Among the parents wearing brightly colored clothes waiting for their children to return triumphantly, most of them were mothers. Among the mothers, most of them wore cheongsams. Among the mothers wearing cheongsams, most of them wore red cheongsams.

Of course, among the mothers who don't wear cheongsam, most of them wear red clothes.

It's the first day of the college entrance examination, right off the bat.

A cult named "Parents' Dressing Skills for College Entrance Examination" spread like a virus in a community near a high school, hotels, clothing stores and other places, and it was unstoppable. Most parents were affected by this "virus".The result is what you see.

You ask me why I wear a cheongsam?

"Flag the flag" to find out.

The scorching sun was so hot that the parents were sweating profusely, but they couldn't stop them from advancing and retreating with their children. Some parents held a bunch of sweet-scented osmanthus flowers, implying the success of the Toad Palace.Some raised their mobile phones on tiptoes to barely stand out from the crowd. She made a difficult turn around this place where shoulders rubbed against each other, took a 360-degree video on WeChat, and then sent a Circle of friends - "My daughter is in the college entrance examination, I hope that three years of hard work will not be in vain, and the hard work will pay off!" It is accompanied by the image of Guanyin Bodhisattva.

And talking to other parents—

"Your family's grades are pretty good." Classmate A's mother said.

Student B's mother flashed a proud smile, waved her hand, and said modestly: "No, no, I can only get into Nantah University."