One? , multiple choice questions? (3 points for each small question, ***30 points)

1. (Beijing Dongcheng District 02) is a real number? ,0,? ,-3. 14,? In, the irrational number is ()

A.？ 1? B? Two cs? Three d's? four

2. What is the solution of (02 Taizhou) equations? (? )

Asian Development Bank.

3.(0 1 Xicheng District, Beijing) If A > B, then the following conclusion is wrong ().

A.？ a3 > b-3B。 ? 3a>3bC > 3bc. > d？ -a>-b

4.(03 Shaanxi) Group Inequality? The solution set of is represented on the number axis, and the correct one is ()

Answer? b？ c？ D

5.(05 Hangzhou) Design? And then what? The size relationship of is ()

A.？ BC? D.

6. the solution set of (03 Yantai) inequality ax > b is X.

A.？ a≤0B。 ? a0？

7.？ (04 Nanning) What do you need at least if you want to use regular triangles and squares for dense pavement? (? )

A. Three regular triangles and two squares? Two regular triangles and three squares.

C. two regular triangles and two squares? Three regular triangles and three squares.

8.？ (04 Xinjiang) On February 24th, 2004, a strong earthquake of magnitude 6.8 occurred in Jiashi and Bachu, Xinjiang. As shown in the figure, if the plane rectangular coordinate system is established with Urumqi as the coordinate origin, the epicenter should be located at ().

Answer? . ? The first quadrant B. The second quadrant

C.？ The third quadrant? d？ Quadrant four

9.(03 Jingmen) Sixty-four male table tennis players played singles elimination (the winner entered the next round and the loser was eliminated) until the singles champion was decided. * * * What is the number of competitions? )

A.32 games? B.62 games C.63 games D.64 games

10.(04 Changsha) The figure shows the numerical converter. If input? What is the value? , the output should be? (? )?

A.？ 2? B.-2C. 1？ D.- 1

Fill in the blanks (3 points for each small question, 24 points for * * *)?

What are the square roots of 1 1.(02 Xuzhou) 64 and the cube roots of -64? .

12.(04 Wanzhou) If point P (-2,3) is known, what is point P about? The coordinates of the axisymmetric point are _ _ _ _ _ _ _? .

13.(02 Suzhou) Known? Is it an equation? So, what is the solution? ________? .

14. The positive integer solution of (01Shanghai) inequality 7-2x > 1 is _ _ _ _.

15.(03 Fuzhou) As shown in the figure,? Lines a and b are cut by lines c and a‖b if

∠ 1 = 60, then∠ 2 =? Degree.

16.(04 Jiangxi) As shown in the figure, = _ _ _ _ _? Degree.

17.(03 Guangzhou)? The apex of? As a party? Vertical line, if this vertical line will? Divide? And then what? So, two horns? What is the degree of the larger angle in _ _ _ _? .

18.？ As shown in the figure, the coordinates of point A and point B are A( 1,? )、B(？ ,0),

Find the area of △OAD (accurate to 0. 1) (? = 1. 14 1? 4,? =2.236),

So S△OAB= .

Three. Problem solving: (19,20,21,22,23, 6 points, 24,25, 8 points, ***46 points)

19. Solve the equation? 20.(02 Xuanwu) Solving Inequalities? 1+? x >？ ,

Its solution set is represented on the number axis.

2 1.？ As shown in figure ∠ A = ∠ B, ∠ 1 = ∠ 2, please judge the positional relationship between AB and CE.

And briefly explain the reasons.

22.(03 Zhaoqing) It is reported that in recent years, the supply and demand of the national talent market has increased the most, and the overall situation has been improving. In the first quarter of 2003, the total number of registered employers and registered job seekers was 8.88 million, of which 3.96 million were registered job seekers. What is the number of registered job seekers?

23. observation? , that is;

, that is.

Guess what? What equals and verifies your guess through calculation? .

24. Xiaoming uses four two right-angled sides as A and B respectively. (a < b) Right-angled triangle puzzle: the rectangle assembled by small flowers (as shown in Figure ①) has a circumference of 20㎝, and the square assembled by Xiao Ming (as shown in Figure ②) has a square hole with a side length of 1㎝. Find the length of a and B.

25.(04 Nanning) In order to develop new products, a beverage factory trial-produced 50 kg of new drinks A and B with juice raw materials A and B of 19kg and 17.2kg respectively. The following table is the relevant data of the test:

Drinks

Content per kilogram? Answer? second

A (in kilograms)? 0.5? 0.2

B (in kilograms)? 0.3? 0.4

Suppose a drink needs to be prepared with x kilograms, please write the inequality group that satisfies the meaning of the question and find its solution set.