中学生网络课堂本课配套习题挑战模式1/5
单选题
难度系数：
1.
下列去括号正确的是（ ）
| A:
|
| B:
|
| C:
|
| D:
|
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5aaC5p6c5ous5Y+35aSW55qE5Zug5pWw5piv5q2j5pWw77yM5Y675ous5Y+35ZCO5Y6f5ous5Y+35YaF5ZCE6aG555qE56ym5Y+35LiO5Y6f5p2l55qE56ym5Y+355u45ZCMPC9wPg==
- 提示2：PHA+5aaC5p6c5ous5Y+35aSW55qE5Zug5pWw5piv6LSf5pWw77yM5Y675ous5Y+35ZCO5Y6f5ous5Y+35YaF5ZCE6aG555qE56ym5Y+35LiO5Y6f5p2l55qE56ym5Y+355u45Y+NPC9wPg==
- 答案：Qg==
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
本课配套习题挑战模式2/5
单选题
难度系数：
2.
下列式子正确的是（ ）
| A:
|
| B:
|
| C:
|
| D:
|
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5Y675ous5Y+35rOV5YiZ77ya5aaC5p6c5ous5Y+35aSW55qE5Zug5pWw5piv5q2j5pWw77yM5Y675ous5Y+35ZCO5Y6f5ous5Y+35YaF5ZCE6aG555qE56ym5Y+35LiO5Y6f5p2l55qE56ym5Y+355u45ZCM77yb5aaC5p6c5ous5Y+35aSW55qE5Zug5pWw5piv6LSf5pWw77yM5Y675ous5Y+35ZCO5Y6f5ous5Y+35YaF5ZCE6aG555qE56ym5Y+35LiO5Y6f5p2l55qE56ym5Y+355u45Y+N77yOPC9wPg==
- 提示2：PHA+5Y675ous5Y+36KeE5b6L77ya4pGgYSvvvIhiK2PvvIk9YStiK2PvvIzmi6zlj7fliY3mmK/igJwr4oCd5Y+377yM5Y675ous5Y+35pe26L+e5ZCM5a6D5YmN6Z2i55qE4oCcK+KAneWPt+S4gOi1t+WOu+aOie+8jOaLrOWPt+WGheWQhOmhueS4jeWPmOWPt++8m+KRoWEt77yIYi1j77yJPWEtYitj77yM5ous5Y+35YmN5piv4oCcLeKAneWPt++8jOWOu+aLrOWPt+aXtui/nuWQjOWug+WJjemdoueahOKAnC3igJ3lj7fkuIDotbfljrvmjonvvIzmi6zlj7flhoXlkITpobnpg73opoHlj5jlj7fvvI48L3A+
- 答案：Qw==
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
本课配套习题挑战模式3/5
单选题
难度系数：
3.
下面各题去括号错误的是（ ）
| A:
|
| B:
|
| C:
|
| D:
|
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5aaC5p6c5ous5Y+35aSW55qE5Zug5pWw5piv5q2j5pWw77yM5Y675ous5Y+35ZCO5Y6f5ous5Y+35YaF5ZCE6aG555qE56ym5Y+35LiO5Y6f5p2l55qE56ym5Y+355u45ZCM77ybPC9wPg==
- 提示2：PHA+5aaC5p6c5ous5Y+35aSW55qE5Zug5pWw5piv6LSf5pWw77yM5Y675ous5Y+35ZCO5Y6f5ous5Y+35YaF5ZCE6aG555qE56ym5Y+35LiO5Y6f5p2l55qE56ym5Y+355u45Y+N77yOPC9wPg==
- 答案：QQ==
PGRpdj7op6PvvJpB44CBPGltZyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzBFLzcwL3JCQUNFMU1ESkJqd2M5SGxBQUFEcHdjM3cxQTg3Ny5wbmciIGRhdGEtY2tlLXNhdmVkLXNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMEUvNzAvckJBQ0UxTURKQmp3YzlIbEFBQURwd2MzdzFBODc3LnBuZyIgaGVpZ2h0PSI0MiIgd2lkdGg9IjIzMyI+6ZSZ6K+v77ybPGJyPkLjgIFD44CBROespuWQiOWOu+aLrOWPt+azleWIme+8jOato+ehru+8jjxicj7mlYXpgIlB77yOPC9kaXY+
本课配套习题挑战模式4/5
单选题
难度系数：
4.
下列各题去括号所得结果正确的是（ ）
| A:
|
| B:
|
| C:
|
| D:
|
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5Y675ous5Y+35pe277yM6L+Q55So5LmY5rOV55qE5YiG6YWN5b6LLCDlhYjmiormi6zlj7fliY3nmoTmlbDlrZfkuI7mi6zlj7fph4zlkITpobnnm7jkuZg8L3A+
- 提示2：PHA+5YaN6L+Q55So5ous5Y+35YmN5piv4oCdK+KAnO+8jOWOu+aLrOWPt+WQju+8jOaLrOWPt+mHjOeahOWQhOmhuemDveS4jeaUueWPmOespuWPt++8mzwvcD4=
- 提示3：PHA+5ous5Y+35YmN5piv4oCdLeKAnO+8jOWOu+aLrOWPt+WQju+8jOaLrOWPt+mHjOeahOWQhOmhuemDveaUueWPmOespuWPt++8jjwvcD4=
- 答案：Qg==
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
本课配套习题挑战模式5/5
单选题
难度系数：
5.
化简
的结果为（ ）
| A:
|
| B:
|
| C:
|
| D:
|
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5qC55o2u5Y675ous5Y+35LiO5ZCI5bm25ZCM57G76aG55rOV5YiZ6Kej562UPC9wPg==
- 提示2：PHA+5rOo5oSP5ous5Y+35YmN5piv4oCcK+KAne+8jOWOu+aLrOWPt+WQju+8jOaLrOWPt+mHjOeahOWQhOmhuemDveS4jeaUueWPmOespuWPt++8mzwvcD4=
- 提示3：PHA+5ous5Y+35YmN5piv4oCcLeKAne+8jOWOu+aLrOWPt+WQju+8jOaLrOWPt+mHjOeahOWQhOmhuemDveaUueWPmOespuWPt++8jjwvcD4=
- 答案：Qg==
PGRpdj7op6PvvJo8aW1nIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvRUIvQkYvckJBQ0ZGTURKY3FCZ3ZxeEFBQUNVRE9RQ08wNDk0LnBuZyIgZGF0YS1ja2Utc2F2ZWQtc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC9FQi9CRi9yQkFDRkZNREpjcUJndnF4QUFBQ1VET1FDTzA0OTQucG5nIiBoZWlnaHQ9IjIxIiB3aWR0aD0iMTc1Ij48aW1nIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMEUvNzUvckJBQ0UxTURKY3JDNnpzREFBQUJfWGNnUlJvOTEzLnBuZyIgZGF0YS1ja2Utc2F2ZWQtc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8wRS83NS9yQkFDRTFNREpjckM2enNEQUFBQl9YY2dSUm85MTMucG5nIiBoZWlnaHQ9IjIxIiB3aWR0aD0iMTA5Ij48YnI+PGltZyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwL0VCL0JGL3JCQUNGRk1ESmNxREdoc3BBQUFCY0FaLVZ6QTc5MC5wbmciIGRhdGEtY2tlLXNhdmVkLXNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvRUIvQkYvckJBQ0ZGTURKY3FER2hzcEFBQUJjQVotVnpBNzkwLnBuZyIgaGVpZ2h0PSIyMSIgd2lkdGg9IjQzIj7mlYXpgIlC77yOPC9kaXY+
