配套习题- 如何理解二元一次方程（组）的概念 -【青果学院】

1/5单选题

难度：

1.下列方程中，是二元一次方程的有（）个①

②

③

④

⑤

⑥

A	1
B	2
C	3
D	4

正确答案：Qg==

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

2/5单选题

难度：

2.下列四个方程组中，是二元一次方程组的有（）个. （1）

;（2）

；（3）

；（4）

A	4
B	3
C	2
D	1

正确答案：RA==

PGRpdj7op6PvvJrvvIgx77yJ5piv5LqM5YWD5LqM5qyh5pa556iL57uE77ybPGJyPu+8iDLvvInmmK/kuozlhYPkuozmrKHmlrnnqIvnu4TvvJs8L2Rpdj48ZGl2Pu+8iDPvvIk8aW1nIHdpZHRoPTkgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMjMvNUIvckJBQ0UxTU1XYnV5b1EwM0FBQUJObncyQXBRMDk2LnBuZyI+5piv5YiG5byP77yM5LiN5piv5LqM5YWD5LiA5qyh5pa556iL57uE77ybPGJyPu+8iDTvvInmmK/kuozlhYPkuIDmrKHmlrnnqIvnu4TvvJs8YnI+5pWF6YCJ77yaRC4gPC9kaXY+

3/5单选题

难度：

3.方程

有（）个正整数解

A	1
B	2
C	3
D	无数

正确答案：Qg==

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

4/5单选题

难度：

4.若

是关于

的二元一次方程，且

，则

的值是（）

A
B	2
C	4
D

正确答案：QQ==

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

5/5单选题

难度：

5.若

为整数，则使得方程

的解也是整数的

的值有（）个

A	4
B	8
C	12
D	16

正确答案：RA==

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