本课配套习题挑战模式1/5
单选题
难度系数:
1.等于()
A: |
B: |
C: |
D: |
一次做对,真牛!
+5奖励规则>
- 提示1:5Y2V6aG55byP6Zmk5Lul5Y2V6aG55byP77yM57O75pWw5ZKM5ZCM5bqV5bmC55qE5YiG5Yir55u46Zmk77yM5oqK5b6X5Yiw55qE57uT5p6c5L2c5Li65ZWG55qE5q+P5LiA6aG5
- 答案:Qg==
6Kej562U77ya4oi1PGltZyB3aWR0aD0xMjkgaGVpZ2h0PTQzIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvM0UvRTUvckJBQ0oxVElsTXJ4MzZFdEFBQURqRV9iY0NVNTYwLnBuZyI+PTxpbWcgd2lkdGg9MTQ2IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzNFL0E3L3JCQUNKbFRJbE1yaWROeUxBQUFDNnZWVzJRRTg4Ni5wbmciPj08aW1nIHdpZHRoPTkgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvM0UvQTcvckJBQ0psVElsTV96a3JES0FBQUJSY2VHNmtZODg5LnBuZyI+YWM8YnI+5pWF6YCJQg==
本课配套习题挑战模式2/5
单选题
难度系数:
2.(8x6y2+12x4y-4x2)÷(-4x2)的结果是()
A: -2x3y2-3x2y |
B: -2x3y2-3x2y+1 |
C: -2x4y2-3x2y+1 |
D: 2x3y3+3x2y-1 |
一次做对,真牛!
+5奖励规则>
- 提示1:5aSa6aG55byP6Zmk5Lul5Y2V6aG55byP562J5LqO5aSa6aG55byP55qE5q+P5LiA6aG56Zmk5Lul5Y2V6aG55byP77yM5oqK5b6X5Yiw55qE57uT5p6c55u45Yqg
- 答案:Qw==
6Kej562U77yaKDg8aT54PC9pPjxzdXA+Njwvc3VwPjxpPnk8L2k+PHN1cD4yPC9zdXA+KzEyPGk+eDwvaT48c3VwPjQ8L3N1cD48aT55PC9pPi00PGk+eDwvaT48c3VwPjI8L3N1cD4pw7coLTQ8aT54PC9pPjxzdXA+Mjwvc3VwPik9LTI8aT54PC9pPjxzdXA+NDwvc3VwPjxpPnk8L2k+PHN1cD4yPC9zdXA+LTM8aT54PC9pPjxzdXA+Mjwvc3VwPjxpPnk8L2k+KzE8YnI+5pWF6YCJQw==
本课配套习题挑战模式3/5
单选题
难度系数:
3.化简的结果是()
A: |
B: |
C: |
D: |
一次做对,真牛!
+5奖励规则>
- 提示1:56ev55qE5LmY5pa5562J5LqO56ev55qE5q+P5LiA6aG55YiG5Yir5LmY5pa5
- 提示2:5aSa6aG55byP6Zmk5Lul5Y2V6aG55byP562J5LqO5aSa6aG55byP55qE5q+P5LiA6aG55YiG5Yir6Zmk5Lul5Y2V6aG55byP77yM5oqK5b6X5Yiw55qE57uT5p6c55u45Yqg
- 提示3:5bmz5pa55beu5YWs5byPPGltZyB3aWR0aD00OSBoZWlnaHQ9MjMgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8zRS9FNS9yQkFDSjFUSWxOM2ctYUl2QUFBQjZ5MVVGU1EzODkucG5nIj4977yIYSti77yJ77yIYS1i77yJ
- 答案:Qg==
6Kej562U77ya4oi1PGltZyB3aWR0aD0xMzEgaGVpZ2h0PTI1IHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvM0UvRTUvckJBQ0oxVElsTjJpSF9vOUFBQUN3dEVWWjU4NDc4LnBuZyI+PTxpbWcgd2lkdGg9MjQ0IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzczLzFBL3JCQUNFMVRJbE4yVGtSZTFBQUFEUjk3SGpkQTU4NS5wbmciPjxicj7mlYXpgIlC
本课配套习题挑战模式4/5
单选题
难度系数:
4.下列运算中①②③④;其中错误的个数有()
A: 1个 |
B: 2个 |
C: 3个 |
D: 4个 |
一次做对,真牛!
+5奖励规则>
- 提示1:5ZCM5bqV5bmC55u46Zmk77yM5bqV5pWw5LiN5Y+Y77yM5oyH5pWw55u45YeP
- 提示2:56ev55qE5LmY5pa577yM562J5LqO56ev55qE5q+P5LiA6aG55YiG5Yir5LmY5pa5
- 答案:Qg==
6Kej562U77ya4oi1NjxpbWcgd2lkdGg9OTQgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvM0UvRTUvckJBQ0oxVElsT0dBVkp1ZkFBQUNCcmctdjJ3NTA2LnBuZyI+LDxpbWcgd2lkdGg9MjE4IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzczLzFBL3JCQUNFMVRJbE9HemV4ME1BQUFDN3BLQms0TTU5MS5wbmciPjxicj7mlYXikaHikaLplJnor688YnI+5pWF6YCJQg==
本课配套习题挑战模式5/5
单选题
难度系数:
5.若,那么B=( )
A: |
B: |
C: |
D: |
一次做对,真牛!
+5奖励规则>
- 提示1:5pW05byP5LmY5rOV55qE6YCG6L+Q566X
- 提示2:5aSa6aG55byP6Zmk5Lul5Y2V6aG55byP562J5LqO5aSa6aG55byP55qE5q+P5LiA6aG55YiG5Yir6Zmk5Lul5Y2V6aG55byP77yM5oqK5b6X5Yiw55qE57uT5p6c55u45Yqg
- 答案:Qw==
6Kej562U77ya4oi1PGltZyB3aWR0aD0xNzkgaGVpZ2h0PTIzIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvNzMvMUEvckJBQ0UxVElsT1NqWWFycEFBQUVFUVhORG9ZNTA4LnBuZyI+PGJyPuKItEI9KDE0PGltZyB3aWR0aD0xNTQgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvM0UvQTcvckJBQ0psVElsT1R6N3VtWEFBQUMxNHhMUXhrMDQ4LnBuZyI+PTxpbWcgd2lkdGg9ODMgaGVpZ2h0PTIzIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvM0UvQTcvckJBQ0psVElsT1REVnpIdEFBQUNzY0hFNlM4NjU2LnBuZyI+PGJyPuaVhemAiUM=