A sentence that uses metaphors to illustrate things Specific!

A sentence that uses metaphors to illustrate things Specific!

2002-02-12 003 ideal is the thinking of seeking goals. 2002-02-12 004 ideal is the master of the world. 2002-02-12 005 everyone has a certain ideal, which determines the direction of his efforts and judgment

The poem "-- --, -- --". Shows that new things cannot be stopped

The waves behind the Yangtze River push the waves ahead, and the new people in the world catch up with the old people
Thousands of sails pass by the side of the sunken boat and thousands of trees spring in front of the diseased tree
The new leaves in the forest urge the old leaves, and the flowing water makes the former waves give way to the latter

On the problem of mathematics in the sixth grade of primary school
The price of a kind of liquid medicine used to be 11 yuan per bottle. The first price cut was 1.5 yuan, and the second price cut was 0.7 yuan. After two price cuts, how much lower was the price? Xiao Ming read a book. He read 20% of the total pages on the first day, and the ratio of the pages read on the second day to the pages read on the first day was 5:4. There were 110 pages left to read. How many pages are there in the whole book

2. Xiao Ming read a book. He read 20% of the total pages on the first day, and the ratio of the pages read on the second day to the pages read on the first day was 5:4, There are 110 pages left to read. How many pages are there in the whole book? 110 △ 1-20% - 20% × 5 / 4 = 110 △ 0.55 = 200 pages

Expand the side of the next cylinder to get a square with a side length of 31.4cm. What's the volume of this cylinder?

2 × 31.4 = 3.14 × 25 × 31.4 = 2464.9 (cubic centimeter) a: the volume of this cylinder is 2464.9 cubic centimeter

When the earth is closest to the sun, it is China's:

"Light snow" (solar term). The perihelion of the earth is between January 3 and January 4; light snow is between January 5 and January 6 "Due to the perturbation effect of other major planets (mainly Jupiter), the perihelion of the earth's orbit also has precession, with a period of about 21000 years and a year of about 1.03 '"

Calculation of physical consumption of electric energy
The specification of the electric energy meter is "220V 5A 1000r / kW. H". If the electric energy meter turns to 600 rpm within 5 minutes, the indication of the electric energy meter will change from 31.6 to 100 RPM during this period（

As for physical quantity, apart from its physical meaning, definition and calculation formula, unit is also very important. Sometimes when you understand the meaning of unit, some problems can be solved by arithmetic. Just like your problem, if you can understand the meaning of 1000r / kW. H, it means: for every 1kW. H (i.e. 1 kilowatt hour) consumed, electric energy meter

If the sum of the area of the two squares is 106 and the difference of the perimeter is 16, then the side length of the larger square is 106______ ．

Suppose the side length of the larger square is x, then the side length of the smaller square is x-4. According to the meaning of the title, we get x2 + (x-4) 2 = 106, and the solution is x = 9 or x = - 5 (rounding off), so the side length of the larger square is 9

A simple calculation with the law of multiplicative distribution: 8.88 × 9 + 777 × 0.04

8.88×9+777×0.04
=1.11x8x9+1.11x700x0.04
=1.11x72+1.11 x28
=1.11x(72+28)
=1.11x100
=111

The range of the function f (x) = x + 3 / 2 on [- 5, - 4] is?

∵ - 5 ≤ x ≤ - 4, ∵ - 3 ≤ x + 2 ≤ - 2, - 1 / 2 ≤ 1 / (x + 2) ≤ - 1 / 3, - 3 / 2 ≤ 3 / (x + 3) ≤ - 1, that is to say, the value range is {y | - 3 / 2 ≤ y ≤ - 1}

As shown in the picture, on a rectangular grassland a meter long and B meter wide, there is a curved path. The left line of the path moves 1 meter to the right, which is its right line. Find the green area of this grassland!

If the left part is moved to the right for 1 meter, the two parts can form a rectangle with a length of (A-1) meters and a width of. B meters, and the area of the grassland is (A-1) b square meters