1/5单选题
难度：
1.
的次数是（ ）
| A | 3 |
| B | 2 |
| C | 4 |
| D | -4 |
- 提示1：
- PHA+5LiA5Liq5Y2V6aG55byP5Lit5omA5pyJ5a2X5q+N55qE5oyH5pWw55qE5ZKM5Y+r5YGa5Y2V6aG55byP55qE5qyh5pWwPC9wPg==
正确答案：QQ==
PGRpdj7op6PvvJrmiYDmnInlrZfmr43mjIfmlbDnmoTlkow9MisxPTM8L2Rpdj4=
2/5单选题
难度：
2.
下列说法正确的是（ ）
| A | a+b是单项式 |
| B | 单项式 |
| C |
|
| D | 单项式 |
的系数是-3
是单项式，次数是3
的次数为2- 提示1：
- PHA+54af57uD56Gu5a6a5Y2V6aG55byP55qE5qyh5pWw5ZKM57O75pWw5piv6Kej6aKY5YWz6ZSuPC9wPg==
正确答案：RA==
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
3/5单选题
难度：
3.下列结论中，正确的是（ ）
| A | 单项式 的系数是2，次数是2 |
| B | 单项式a既没有系数，也没有指数 |
| C | 单项式 的系数是﹣1，次数是4 |
| D | 没有加减运算的代数式是单项式 |
- 提示1：
- IOWNlemhueW8j+S4reaVsOWtl+WboOaVsOWPq+WBmuWNlemhueW8j+eahOezu+aVsA==
- 提示2：
- IOWNlemhueW8j+eahOasoeaVsOWwseaYr+aJgOacieWtl+avjeaMh+aVsOeahOWSjA==
正确答案：Qw==
PGRpdj7op6PvvJpB44CB5Y2V6aG55byPPGltZyB3aWR0aD0zNSBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8yMy81OC9yQkFDRTFNTVdTYVJvZ0pnQUFBQnltLVZrQzg2MzAucG5nIj7nmoTns7vmlbDmmK88aW1nIHdpZHRoPTcgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMDAvNjkvckJBQ0ZGTU1XU2VRRnFSTkFBQUJOR3M4dlkwNjIxLnBuZyI+77yM5qyh5pWw5pivMzwvZGl2PjxkaXY+QuOAgeWNlemhueW8j2HnmoTns7vmlbDkuLox77yM5oyH5pWw5pivMTwvZGl2PjxkaXY+ROOAgeaVsOaIluWtl+avjeeahOenr+e7hOaIkOeahOW8j+WtkOWPq+WBmuWNlemhueW8jzwvZGl2Pg==
4/5单选题
难度：
4.下列说法正确的是（ ）
| A | 单项式a的次数是0 |
| B | 单项式a的系数为0 |
| C |  是7次单项式 |
| D | ﹣1是单项式 |
- 提示1：
- IOagueaNruWNlemhueW8j+eahOezu+aVsOaYr+aVsOWtl+WboOaVsO+8jOasoeaVsOaYr+aJgOacieWtl+avjeaMh+aVsOeahOWSjO+8jOi/m+ihjOWIpOaWrQ==
正确答案：RA==
PGRpdj7op6PvvJpB44CB5Y2V6aG55byPYeeahOasoeaVsOaYrzHvvJs8L2Rpdj48ZGl2PkLjgIHljZXpobnlvI9h55qE57O75pWw5Li6Me+8mzwvZGl2PjxkaXY+Q+OAgTxpbWcgd2lkdGg9MjcgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMjMvNTgvckJBQ0UxTU1XU3J4bHZKekFBQUJsVVpzSWdBNDM5LnBuZyI+5pivM+asoeWNlemhueW8jzwvZGl2Pg==
5/5单选题
难度：
5.
单项式
的系数和次数分别是（ ）
| A |
|
| B |
|
| C |
|
| D |
|
- 提示1：
- PHA+5qC55o2u5Y2V6aG55byP57O75pWw44CB5qyh5pWw55qE5a6a5LmJ5p2l5rGC6KejPC9wPg==
正确答案：Qg==
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