First aid! Here comes the master!! First aid!!!!

Two people with three legs (15 20 minutes) (4 groups, 4 people each, knockout format) (4 winners receive prizes) (one round-trip relay race).

Grab the stool (10 minutes) (divided into two groups, 10 people in each group, 5 men and 5 women) (the top 2 will enter the finals, and the winner will receive a prize).

Parody the plot of the movie, and everyone guesses the name of the movie (the winner wins, 1 3 rounds) (15 25 minutes).

Beat Order (class participation, 1 2 rounds) (last person wins) (10 20 minutes).

Back (xiong) balloon clip (4 groups, 2 people per group, knockout format) (2 winners get prizes) (optional) (because a round trip is a bit boring).

Step on balloons (choose 8 people, choose your teammates, two people tie their feet together, tie 5 balloons in the common foot, and in the end, the balloon winner wins, and the winner 2 gets a prize) (optional) (The position is too small, a bit dangerous.) ）

After playing the group game, you can move freely and start your free activities (maybe when it is deserted, you can use the drum to pass the flowers and choose someone to sing a song).

If people don't enter the society and don't understand the society, how can they be people? The most important thing in the process of growing up at a young age is to teach children to get along well with others and learn to deal with interpersonal relationships. This is more important than mere intellectual education.

I hope that the landlord's children will grow up healthy and happy.

The "3rd square root" you describe should be the "3rd square root".

Order 2006x 3 2007y 3 2008z 3 k, then:

2006x 2k x, 2007y 2k y, 2008z 2k z, and 2006 (1 3) k (1 3) x, 2007 (1 3) k (1 3) y, 2008 (1 3) k (1 3) z.

2006x^2＋2007y^2＋2008z^2）^（1/3）

k/x＋k/y＋k/z）^（1/3）＝k^（1/3）（1/x＋1/y＋1/z）^（1/3）。

and 2006 (1 3) 2007 (1 3) 2008 (1 3).

k^（1/3）/x＋k^（1/3）/y＋k^（1/3）/z＝k^（1/3）（1/x＋1/y＋1/z）。

2006x 2 2007y 2 2008z 2) (1 3) 2006 (1 3) 2007 (1 3) 2008 (1 3), k (1 3) (1 x 1 y 1 z) (1 3) k (1 3) (1 x 1 y 1 z), x, y, z are all greater than 0, k (1 3) 0, (1 x 1 y 1 z) (1 3) (1 x 1 y 1 z), The cubes of both sides get: (1 x 1 y 1 z) (1 x 1 y 1 z) 3, (1 x 1 y 1 z) (1 x 1 y 1 z) 2 1 0

Obviously, 1 x 1 y 1 z 0, (1 x 1 y 1 z) 2 1, 1 x 1 y 1 z 1.

Doing math problems? It's in the wrong place!

。。。Time passed like flowing water, and in the blink of an eye, the mid-section exam had ended, and the results had been announced. Looking at the scores on the test papers, I was surprised.

Because that's not the score I really wanted. Why can't I get higher? So, I started to check myself.

I'm always nervous and anxious when it comes to exams, so I've come up with a few ways to do this. 1.When answering the question, don't rush to put pen to paper, first list the main steps of the question on the scratch paper, and then follow the steps step by step, do not ignore every detail, and try to answer each question completely; 2.

Usually do more different types of questions, so that you will be familiar with most of the question types, and you will be sure when you get the test paper; 3.Do some arithmetic exercises so that you don't lose points in calculations. I think if I can do the things I mentioned above, I will be able to minimize the mistakes in the exam.

Therefore, I will definitely try my best to do the above.

But I think it's not enough to rely on the above points alone, I should also have a few scientific test-taking skills. So, I came up with a few points based on my own actual situation. The first point:

Once you have the exam papers, you should look at the exam papers as a whole to see which questions are easier and which ones are more difficult. The second point: start with the simple questions and take all the good scores.

Point 3: If you encounter a problem and can't write it right away, don't stare at that question and ignore the other questions, and try to solve that question after completing all the questions you can do. Fourth point:

After the test, check carefully to see if you have read or copied the questions incorrectly.

I will definitely do my best in the next exam.

25 cm = 0 25 meters.

36 square decimeters = 0 36 square meters.

600 g = 0 6 kg.

750 ml = 7 5 liters.

0 28 dm = 0 28 dm.

258 cubic centimeters = 2 58 cubic decimeters.

Let the masses of A and B be m1 and m2 respectively

The speed of A and B at the moment of landing is V1 and V2 respectively, and the time is the height of the tb point H, then the ball A:

1/2m1v1*v1=m1g*20;v1=20 and v1=gt; t=2

For ball B: by v2=10+gt; Bring in t to obtain v2=30 and 1 2m2(v2*v2-10*10)=m2gh; H=40 is given and the velocity v of ball B is set to point A

Then v2*v2-v*v=2g*20, the number of points brought in is worth v = A: point B is 40m above the ground, and the velocity of ball B to point A is.