1. The product of integers whose absolute value is not greater than 4 is () A. 16.

B.0

C.576

D.- 1

2. If the solution of equation ax+3=4x+ 1 about X is a positive integer, then the value of integer A is () a.2..

B.3

C. 1 or 2

D.2 or 3

3. Of the four figures on the right in the figure below, the one that is the perspective view of the left expanded figure is ().

4. Let "Δ, △, □" represent three different objects, and the current balance has been weighed twice, as shown in the figure, so the order of the mass of these three objects from large to small is correct ().

A.□〇△

B.□△〇

C.△〇□

D.△□〇

5. If A and B are antonyms, C is the smallest non-negative number and D is the smallest positive integer, find the value of (A+B) D A+B) D+D-C C. 。

Reference answer

1.b； 2.d； 3.d； 4.b；

5. 1;