70 out of 60 words about Chinese population,

70 out of 60 words about Chinese population,

As we all know ,China is a great country which has the greatest population in the world.At present,with the help of the policy we have taken ,the growing population has been controled to some extent.H...

China has a larger population than Australia

The population of China is larger than that of Australia.
China has a larger population than Australia
I hope my answer can help you,

A classroom is 8m in length and 6m in width. Please determine the scale and draw the floor plan of the classroom

1: The paper size is about 12 * 10 cm for the scale of 100 and 20 * 16 cm for the scale of 1:50

A math fill in the blanks,
A is three fifths more than B. A is a fraction or percentage of B. B is a fraction or percentage of A. B is a fraction or percentage less than A. A is a fraction or percentage of the sum of ab

Eight fifths, five eighties, three eighties, eight thirds

Discussion on weight of Fanggang management
Can anyone answer me: what is the theoretical weight per meter of 100x100x7.5 square steel pipe?

Cold formed square hollow section steel for structure (gb6728-86)
100x1000x4.0 weight per meter 11.734kg
100x100x5.0 weight per meter 14.409 kg
100x100x6.0 weight per meter 16.981kg
Only the thickness of these three kinds of thickness can be calculated according to the above law
100x100x7.5 weight per meter = 20.633kg

The bottom of the isosceles trapezoid is twice as big as that of God, and the two bottom angles are 60 degrees. The trapezoid is divided into four parts of the same size and shape
Make it clear

Cut as shown in the picture

If you look at the 26 English letters, which ones are axisymmetric? If it is axisymmetric, mark "√" in the following 0

According to the meaning of the axisymmetric figure, it can be seen that:

A cuboid warehouse measures about 9 meters in length, 6 meters in width and 5 meters in height from inside. How many cuboid wooden boxes can be put in if they are 2 meters long?

9 △ 2 = 4 1 (m), 6 △ 2 = 3 (pieces), 5 △ 2 = 2 (pieces) 1 (m), then the number of cubes: 4 × 3 × 2 = 24; a: at most 24 wooden cases can be put in

Given that the module of a is 1, the module of B is 2, and the angle is 60 degrees, the cosine value of the angle between a + B and A-B is obtained

We know that the module of a is 1, the module of B is 2, and the angle is 60 degrees,
|a+b|=√(a^2+2ab+b^2)=√(1+2|a|*|b|*cos+4)=√7
|a-b|=√(a^2-2ab+b^2)=√(1-2|a|*|b|*cos+4)=√3
Let the angle between a + B and A-B be X
cosx=(a+b)(a-b)/(|a+b|*|a-b|)=(a^2-b^2)/(|a+b|*|a-b|)=-3/(√7*√3)=-√21/7

As shown in the figure, in △ ABC, ab = BC = AC, de ⊥ AB, DF ⊥ AC, please compare the perimeter of △ AEF and quadrilateral ebcf

∵ AB = BC = AC, ∵ a = ∵ B = ∵ C = 60 °, ∵ de ⊥ AB, DF ⊥ AC, ∵ BDE = ∵ FDC = 30 °, ∵ be = 12bd, CF = 12CD, ∵ be + CF = 12 (BD + CD) = 12bc,