Fill in the blanks about ancient poems! The ancients used different ways to write snow. On the "Snow" in Liu Yiqing's Shi Shuo Xin Yu Yong Xue And the "uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu The metaphor is exquisite, while the "shadow on the lake" in Zhang Dai's the pavilion in the middle of the lake looks at the snow_____ It's just two or three of the people in the boat

Fill in the blanks about ancient poems! The ancients used different ways to write snow. On the "Snow" in Liu Yiqing's Shi Shuo Xin Yu Yong Xue And the "uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu The metaphor is exquisite, while the "shadow on the lake" in Zhang Dai's the pavilion in the middle of the lake looks at the snow_____ It's just two or three of the people in the boat


1. What does snow look like one after another
2. Suddenly like a spring breeze, thousands of pear trees bloom
There is only one mark on the levee



As shown in Figure 1, it is known that in square ABCD, M is the midpoint of AB, e is a point on the extension line of AB, and Mn ⊥ DM, intersection angle CBE


(1) In this paper, we use n to make NF ⊥ AE in F, Mn to make BC in H, ∵ HB ∥ NF, ∵ MBH ∽ dam, ∽ MBH ∽ MFN ∽ BH MB = am, Da = 12 = NF MF, ∽ 2NF = MF, and ∵ NF = BF, ∽ MB = BF = 12 da



7.2/0.125 + 3.6/0.25 + 2 / 0.25
jiansuan


7.2/0.125+3.6/0.25+2/0.25
=7.2/(1/8)+3.6/(1/4)+2/(1/4)
=7.2*8+3.6*4+2*4
=3.6*16+3.6*4+8
=3.6(16+4)+8
=72+8
=80



Solving the problem of one to operation of quadratic radical
Root 1 and two-thirds divided by five sixths of the root
PS: if you could tell me how to divide n / N by N / N, that would be great
N is unknown (n is different) N1 N2 N3 N4


√4/3×6/5=√8/3=√8÷√3=2√2/√3=2√2×√3/√3×√3
=2√6/3



In trapezoidal ABCD, if ad ‖ BC, ∠ B = 90 °, C = 45 °, CD = 10cm, BC = 2ad, the area of trapezoid is______ cm2.


If we make de ⊥ BC at point e through point D, then the quadrilateral abed is rectangle ⊥ ad = be, de = ab ∵ BC = 2ad ⊥ be = EC ∵ C = 45 °⊥ CDE is isosceles right triangle ⊥ CE = de = ad = be = ab ⊥ CD = 10cm ⊥ CE = de = ad = be = AB = cdsin45 ° = 52 ⊥ BC = 102 ⊥ trapezoid area = 12 (AD + BC) · AB = 12 × 152 × 52 = 75cm2



Given (x-m) ² = x & #178; + NX + 1 / 16, then n=_____


(x-m)²=x²-2mx+m²=x²+nx+1/16
Method of undetermined coefficient
m²=1/16
m=±1/4
-2m=n
-2m=±1/2
n=±1/2



1、200÷( )=( )…… 8, the smallest divisor is ()
2. The quotient of 372 △ 6 is () digits, and the highest digit of quotient is ()


1、200÷(12)=(16 )…… In 8, the smallest divisor is (12)
2. The quotient of 372 / 6 is (2) digits, and the highest digit of quotient is (6)



The perimeter of a square is 40 cm. Four such squares form a rectangle. The perimeter of the rectangle is () and the area is ()


The perimeter of the rectangle is (100 cm or 80 cm), and the area is (160 cm and 178 cm)



Two fifths ha = () km2


1 square kilometer = 100 hectares, so two fifths of hectares is: (2 / 5) * (1 / 100) = 0.004 (square kilometer),



The railway bridge of Nanjing Yangtze River Bridge is 6772 meters long, 197 meters longer than that of Wuhan Yangtze River Bridge. How long is the railway bridge of Wuhan Yangtze River Bridge?


Wuhan Yangtze River Bridge is set, the length of the railway bridge is x M
5x+197=6772
5x=6772-197
5x=6575
x=6575÷5
x=1325