The second exam of the first day of junior high school

April 2005, 17, 8: 30 am to 10: 30 am.

Multiple choice questions: (Only one of the four options in each of the following questions is correct. Please fill in the English letters indicating the correct answer in the brackets after each question. )

1. If so, it must be ().

(a) Yes, reciprocal (b) Yes, reciprocal (c) Yes, reciprocal (d) Yes, reciprocal.

2. At that time, the value of the formula was equal to ()

(A) (B) (C) 1 (D)

When you look at the same object from different directions, you may see different figures. Among them, the figure seen from the front is called the main view, the figure seen from the left is called the left view, and the figure seen from above is called the top view. The front view and top view of a geometry composed of several (more than 8) cubes with the same size are shown in figure 1, so the left view of this geometry cannot be ().

4. As shown in Figure 2, in the rectangular ABCD, E, H and G are on the same straight line, so the area of the shaded part is equal to ().

(A)8 (B) 12 (C) 16 (D)20

5. In a triangle, if the metrics of three angles are x, 2x and 3x respectively, then the metric of the largest angle is ().

(A) 150 (B)

) triangle: triangle. Measure: measure. Maximum angle: maximum angle)

6. If we have < 0, < 0 and < 0, then the point on the real number axis, given by A and B, can be expressed as ().

(A) (B)

(C) (D)

7. The number of solutions of this equation is ()

1 (B)2 (C)3 (D)4

8. If, then the following inequality is ()

(A)>b (B)