How does the article express the author's thoughts and feelings?

How does the article express the author's thoughts and feelings?


1. By the little orange lamp. Praise the little girl's calm, brave, optimistic spirit
The light of the little orange lamp is weak, but it can make people think of the girl's calm, brave, optimistic spirit, which is inspiring
Dance
3. From little orange lantern to little girl, her calm, brave and optimistic spirit is valuable in those dark times,
Give people inspiration, make people see the light
4. This shows that although the revolutionary forces at that time were not strong enough, the little orange lamp could light the way forward and guide me
The future of the revolution is infinitely bright



Put four red, yellow and blue balls in a box, and take out at least a few balls to ensure that four balls with the same color can be taken out


The formula is 3 × 4 + 1 = 13



How many square centimeters is 60 square decimeters equal to?


1 square decimeter = 100 square centimeter
60 square decimeters = 6000 square centimeters



From the five numbers "0,2,5,7,8", choose four four digits which are multiples of 3, and then arrange them in the order from small to large


8520>8250>8052>8025>5820>5280>5082>5028>2850>2580>2085>2058
You just turn them upside down



Apply the formula to solve the problem
Why
For a project, Party A will complete it in 40 days and Party B will complete it in 30 days. How many days can party A and Party B jointly complete it?


1 divided by 40 equals one in 40, a's work efficiency. 1 divided by 30 equals one in 30, B's work efficiency. The sum of 1 divided by 40 plus one in 30 equals seven in 120 days



How many liters per cubic meter


1 cubic meter = 1 000 liters



Look at the supplement
A store squeezed 100 pieces of a certain commodity. In order to sell the commodity as soon as possible, the store adopted the following sales plan: first, increase the price to 2.5 times of the original price, and then reduce the price for three times: the first reduction is 30%, mark the "loss price", the second reduction is 30%, mark the "bankruptcy price", the third reduction is 30%, mark the "jump price". The sales situation of the third reduction is as follows:
The number of price cuts is one two three
The number of pieces sold was 10.40
Q: 1. What's the percentage of jumping price in the original price
2. The goods are sold according to the new sales plan. Please explain which plan is more profitable than the original price


1. The percentage of jumping price in the original price is: 2.5x (1-30%) x (1-30%) x (1-30%) = 85.75% 2. If the original price is 1, the sales volume of the new sales plan is: 2.5x (1-30%) X10 + 2.5x (1-30%) x (1-30%) X40 + 2.5x (1-30%) x (1-30%) x (100-10-40) = 109



3+6+9+12+.+99=


1683



How can 4 and 5 be equal to 4 and 5 by adding operation symbols to 4 4


(4-4)*4+4
(4*4+4)/4



How to do the last question on page 76 of Volume 1 of Grade 7


3.3 * 3 equals 9.9
3.1 * 3 equals 9.3
-2.2 * 3 equals - 6.6
-3.1 * 3 equals - 9.3
Do you know?