本课配套习题挑战模式1/5
单选题
难度系数:
1.用语言叙述代数式,正确的是( )
A: a,b两数的平方差 |
B: a与b差的平方 |
C: a与b的平方的差 |
D: b,a两数的平方差 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOagueaNruS7o+aVsOW8j+eahOmhuuW6j+eUqOivreiogOWPmei/sOWHuuadpQ==
- 答案:QQ==
6Kej77yaPGltZyB3aWR0aD00NiBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8zOC82OS9yQkFDRTFObmRzbnpxMzhSQUFBQm9JaGFiQVE1MDEucG5nIj7nlKjor63oqIDlj5nov7DkuLph77yMYuS4pOaVsOeahOW5s+aWueW3rg==
本课配套习题挑战模式3/5
单选题
难度系数:
3.下列各选项中的代数式,符合书写格式的为( )
A: |
B: |
C: |
D: |
一次做对,真牛!
+5奖励规则>
- 提示1:IOagueaNruS7o+aVsOW8j+eahOS5puWGmeagvOW8j+imgeaxguWIpOaWreWQhOmhuQ==
- 答案:Qg==
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
本课配套习题挑战模式4/5
单选题
难度系数:
4.下面判断语句中正确的是( )
A: 2+5不是代数式 |
B: 的意义是的平方与的平方的和 |
C:与的平方差是 |
D: 两数的倒数和为 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOagueaNruS7o+aVsOW8j+eahOWumuS5ieS7peWPiuS7o+aVsOW8j+eahOWQq+S5ieWIpOaWreWQhOmhuS4=
- 提示2:IOazqOaEj+WNleeLrOeahOS4gOS4quaVsOaIluS4gOS4quWtl+avjeS5n+aYr+S7o+aVsOW8jw==
- 答案:RA==
6Kej77yaQeOAgTIrNeaYr+S7o+aVsOW8j++8mzxicj5C44CBPGltZyB3aWR0aD01MSBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8zOC82OS9yQkFDRTFObmR0ZmgwZjJtQUFBQjNudkN2VFEwMjEucG5nIj7nmoTmhI/kuYnmmK88aW1nIHdpZHRoPTggaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvRkMvNjAvckJBQ0ZGTm5kdGZnLVNkNUFBQUJIN1lNbGtFNjc0LnBuZyI+5LiOPGltZyB3aWR0aD04IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzM4LzY5L3JCQUNFMU5uZHRlQjRaR09BQUFCS0l2UGlRTTE1My5wbmciPueahOWSjOeahOW5s+aWuTxicj5D44CBPGltZyB3aWR0aD04IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwL0ZDLzYwL3JCQUNGRk5uZHRmZy1TZDVBQUFCSDdZTWxrRTY3NC5wbmciPuS4jjxpbWcgd2lkdGg9OCBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8zOC82OS9yQkFDRTFObmR0ZUI0WkdPQUFBQktJdlBpUU0xNTMucG5nIj7nmoTlubPmlrnlt67mmK88aW1nIHdpZHRoPTQ2IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzM4LzY5L3JCQUNFMU5uZHNuenEzOFJBQUFCb0loYWJBUTUwMS5wbmciPg==
本课配套习题挑战模式5/5
单选题
难度系数:
5.代数式的意义是( )
A: x与y的一半的差 |
B: x减去y除以2的差 |
C: x与y的差的一半 |
D: x与y的一半的差 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOWFiOihqOi/sOKAnOW3ruKAne+8jOWGjeihqOi/sOKAnOWVhuKAnQ==
- 答案:Qw==
6Kej77yaPGltZyB3aWR0aD0yMyBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8zOC82OS9yQkFDRTFObmR0dlJCRWZmQUFBQnBiVVNIV285NDAucG5nIj7nmoTmhI/kuYnmmK945LiOeeeahOW3rueahOS4gOWNig==