Words about green, red, yellow and blue

Dark green, sad red, sad green, sad green, wearing red, sad green, sad red, big red, big green light, red wine, red green, sad green, flower, red willow, red man, green woman, red love, green wine, green light, dark red

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1. Red, orange, yellow, green, cyan, blue, purple, black, white, brown, pink and gray
2. Write English words red yellow blue green pink good fast short young small
3. Crazy guess white background, blue, red, yellow square, blue rectangle, a vertical bar, a red square, what brand is it
4. As shown in the figure, in the trapezoidal ABCD, ad ∥ BC, ∠ B = 30 ° and ∠ C = 60 ° e, F, m and N are the midpoint of AB, CD, BC and Da respectively. Given BC = 7 and Mn = 3, then EF=______ ．
5. As shown in the figure, in rectangle ABCD, ab = 2ad, line EF = 10. Take a point m on EF, and make rectangle emnh and rectangle mfgn with EM and MF as sides respectively, so that rectangle mfgn ∽ rectangle ABCD. Let Mn = x, when x is the value, the area s of rectangle emnh has the maximum value. What is the maximum value?
6. The side length of square ABCD is 4, M is the midpoint of AD, and point E is the moving point of line ab. it connects EM and extends the intersection line CD to F, and makes the intersection line B of EF through M (1) If M passes through point C, the length of AE is obtained (2) Can CG be equal to AE? If so, find the length of AE
7. Taking AB and AC of △ ABC as the sides, make square ABCD and ACGF outside the triangle, make an ⊥ BC at point n, extend Na and intersect EF at point m, and prove that EM = MF Square ABDE
8. Em, MF, Mn, NH and ng divide the rectangle ABCD into four equal parts, Where FG = BG + BC + CH = eh = de + Da + AF, Mn parallel AB, BC = 19, Mn = 7, find the length of ab The level is too low to pass pictures. Ad and BC are wide, DC and ab are long, e and H are on DC, F and G are on AB, m and N are in rectangular ABCD. Connect dehc, afgb, ad, CB, EM, MF, ng and HN D E H C M N A F G B
9. As shown in the figure, there are two intersecting line segments Mn, EF in square ABCD, m, N, e, f on edge AB, CD, ad, BC respectively. Student a thinks: if Mn = EF, then Mn ⊥ EF; student B thinks: if Mn ⊥ EF, then Mn = ef. Do you think () A. Neither is right. B. both are right. C. only a is right. D. only B is right
10. As shown in the figure, there are two intersecting line segments Mn, EF in square ABCD, m, N, e, f on edge AB, CD, ad, BC respectively. Student a thinks: if Mn = EF, then Mn ⊥ EF; student B thinks: if Mn ⊥ EF, then Mn = ef. Do you think () A. Neither is right. B. both are right. C. only a is right. D. only B is right
11. On a topographic map or globe, blue represents (), green represents (), yellow represents (), and brown represents ()（ one
12. On a map or topograph, what does green stand for, what does blue stand for, what does yellow stand for, and what does brown stand for
13. On the map, generally, what does green stand for, what does blue stand for, and what does yellow stand for On unit test 3 of Science grade 5 Volume 1
14. Blue + () = green () + Red = pink white + Black = () + yellow = orange blue + () = purple black + blue = ()
15. Pigment (Yellow + cyan) = white red blue = green
16. What do blue, green, yellow and brown mean on earth?
17. Looking at the earth from the moon, the white part is (), the green part is (), the blue part is (), and the yellow part is ()
18. If the front view and top view of a triangular prism with equal length of all edges are square and regular triangle respectively, then the left view is? If the front view and top view of a triangular prism with equal length of all edges are square and regular triangle respectively, then the left view is () A. Rectangle B. square C. diamond D. regular triangle Why?
19. If the front view and top view of a triangular prism with equal edge lengths are square and regular triangle respectively, then the left view is () A. Rectangle B. square C. diamond D. regular triangle
20. If the front view and top view of a triangular prism with equal length of all edges are square and regular triangle respectively, the left view is square______ ．