本课配套习题挑战模式1/5
单选题
难度系数:
1.代数式 的值( )
A: 与字母x、y无关 |
B: 只与x有关 |
C: 只与y有关 |
D: 与字母x、y都有关 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOagueaNruWQiOW5tuWQjOexu+mhueeahOazleWIme+8muezu+aVsOebuOWKoOS9nOS4uuezu+aVsO+8jOWtl+avjeWSjOWtl+avjeeahOaMh+aVsOS4jeWPmO+8jOWNs+WPr+S9nOWHuuWIpOaWrQ==
- 答案:QQ==
PGRpdj7op6PvvJrljp/lvI89PGltZyB3aWR0aD0zNjggaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMDEvRTMvckJBQ0ZGTU5YNFNCWHRnY0FBQUVTUlZhOTFJMjQ0LnBuZyI+PC9kaXY+
本课配套习题挑战模式2/5
单选题
难度系数:
2.下列句子中错误的是( )
①如果两项的字母相同,那么这两项是同类项;
②所含字母相同,并且相同字母的指数也分别相同的项叫同类项;
③系数相同的项能合并;
④系数互为相反数的同类项合并后为零
①如果两项的字母相同,那么这两项是同类项;
②所含字母相同,并且相同字母的指数也分别相同的项叫同类项;
③系数相同的项能合并;
④系数互为相反数的同类项合并后为零
A: ①③ |
B: ②④ |
C: ①④ |
D: ②③ |
一次做对,真牛!
+5奖励规则>
- 提示1:IOaNruWQjOexu+mhueeahOWumuS5ieWPiuWQiOW5tuWQjOexu+mhueeahOazleWIme+8jOe7k+WQiOWQhOmhuei/m+ihjOWIpOaWrQ==
- 答案:QQ==
PGRpdj7op6PvvJrikaDmsqHmnInlvLrosIPnm7jlkIzlrZfmr43nmoTmjIfmlbDnm7jlkIzvvIzmlYXmnKzpobnplJnor6/vvJs8YnI+4pGh5q2j56Gu77ybPGJyPuKRouezu+aVsOebuOWQjOeahOmhueS4jeS4gOWumuiDveWQiOW5tu+8jOS+i+Wmgm3jgIFu57O75pWw6YO95pivMe+8jOS9huS4jeiDveWQiOW5tu+8jOaVheacrOmhuemUmeivr++8mzxicj7ikaPmraPnoa4uIDwvZGl2Pg==
本课配套习题挑战模式3/5
单选题
难度系数:
3.下列合并同类项正确的是( )
A: |
B: |
C: |
D: |
一次做对,真牛!
+5奖励规则>
- 提示1:IOagueaNruWQiOW5tuWQjOexu+mhueeahOazleWIme+8muaKiuWQjOexu+mhueeahOezu+aVsOebuOWKoO+8jOaJgOW+l+e7k+aenOS9nOS4uuezu+aVsO+8jOWtl+avjeWSjOWtl+avjeeahOaMh+aVsOS4jeWPmO+8jOe7k+WQiOWQhOmAiemhuei/m+ihjOWIpOaWrQ==
- 答案:RA==
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
本课配套习题挑战模式5/5
单选题
难度系数:
5.下列运算中正确的是( )
A: |
B: |
C: |
D: |
一次做对,真牛!
+5奖励规则>
- 提示1:IOagueaNruWQiOW5tuWQjOexu+mhueeahOazleWImeS+neasoeWIpOaWrQ==
- 答案:QQ==
PGRpdj7op6PvvJo8aW1nIHdpZHRoPTkzIGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzI0L0Q0L3JCQUNFMU1OWDZTRGg2Q2xBQUFCXzNROXE4QTAzMy5wbmciPjwvZGl2Pg==