本课配套习题挑战模式1/5
单选题
难度系数:
1.化简的最后结果是()
A: |
B: |
C: |
D: |
一次做对,真牛!
+5奖励规则>
- 提示1:5ous5Y+35aSW55qE5Zug5pWw5piv6LSf5pWw77yM5Y675ous5Y+35ZCO5Y6f5ous5Y+35YaF5ZCE6aG555qE56ym5Y+35LiO5Y6f5p2l55qE56ym5Y+355u45Y+N
- 提示2:5ZCI5bm25ZCM57G76aG55rOV5YiZ
- 答案:Qw==
PGltZyB3aWR0aD05NiBoZWlnaHQ9MjQgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8zRS9GOS9yQkFDSjFUSXRQaUE0R1FUQUFBQ2JHQzNQbGM3OTUucG5nIj49PGltZyB3aWR0aD0xMjEgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvNzMvMkUvckJBQ0UxVEl0UGl3QWVKMkFBQUNCU2RzcEpjODgyLnBuZyI+LOaVhemAiUPjgII=
本课配套习题挑战模式2/5
单选题
难度系数:
2.两个多项式的和是5x2-3x+2,其中一个多项式是-x2+3x-4,则另一个多项式是( )。
A: |
B: |
C: |
D: |
一次做对,真牛!
+5奖励规则>
- 提示1:5YWI5YiX5byP77yM5YaN5Y675ous5Y+3
- 答案:QQ==
NXg8c3VwPjI8L3N1cD4tM3grMi3vvIgteDxzdXA+Mjwvc3VwPiszeC0077yJPTxpbWcgd2lkdGg9MzUxIGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzNFL0Y5L3JCQUNKMVRJdFFIeXU5M09BQUFFUHVScVJhdzA1Ni5wbmciPuOAgg==
本课配套习题挑战模式3/5
单选题
难度系数:
3.化简所得结果是()
A: 3ab |
B: ab |
C: -3a2 |
D: 0 |
一次做对,真牛!
+5奖励规则>
- 提示1:5Y675ous5Y+35rOV5YiZ77ya5ous5Y+35aSW55qE5Zug5pWw5piv5q2j5pWw77yM5Y675ous5Y+35ZCO5Y6f5ous5Y+35YaF5ZCE6aG555qE56ym5Y+35LiO5Y6f5p2l55qE56ym5Y+355u45ZCM
- 答案:Qg==
PGltZyB3aWR0aD0yMDQgaGVpZ2h0PTUwIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvNzMvMkUvckJBQ0UxVEl0UVR5ZTM4U0FBQUZPWW1VWmtnNzU0LnBuZyI+PTxpbWcgd2lkdGg9MjM2IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzczLzJFL3JCQUNFMVRJdFFUd2ZuQ1BBQUFEWHk0LXhYTTQ0Mi5wbmciPi7mlYXpgIlC44CC
本课配套习题挑战模式4/5
单选题
难度系数:
4.已知,那么的值为()
A: 80 |
B: 10 |
C: 210 |
D: 40 |
一次做对,真牛!
+5奖励规则>
- 提示1:5rOo5oSP56ym5Y+35Y+Y5YyW
- 答案:QQ==
PGltZyB3aWR0aD0yMjIgaGVpZ2h0PTMzIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvNzMvMkUvckJBQ0UxVEl0UHZoY0F4dEFBQUU1d2NZMmFzOTI4LnBuZyI+PTxpbWcgd2lkdGg9MjA4IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwL0FBLzQzL3JCQUNGRlRJdFB2U3JUdmZBQUFEUVcyc25KZzM3NC5wbmciPkE=
本课配套习题挑战模式5/5
单选题
难度系数:
5.减去等于的代数式是()
A: |
B: |
C: |
D: |
一次做对,真牛!
+5奖励规则>
- 提示1:55So5pa556iL55qE5oCd5oOz5pu05a655piT
- 答案:RA==
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