本课配套习题挑战模式1/5
单选题
难度系数:
1.在π,,0.3,3.121121112…(每两个2之间依次多一个1)中,属于有理数的有( )个
A: 6 |
B: 4 |
C: 3 |
D: 2 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOaXoOmZkOS4jeW+queOr+Wwj+aVsOWPq+WBmuaXoOeQhuaVsO+8jOaVtOaVsOWSjOWIhuaVsOe7n+ensOacieeQhuaVsA==
- 答案:RA==
PGRpdj7op6PvvJo8aW1nIHdpZHRoPTU0IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzAwLzQzL3JCQUNGRk1NUjBpQzd1VjhBQUFCNlZiN1JDMDU5Ny5wbmciPuWxnuS6juacieeQhuaVsDwvZGl2Pg==
本课配套习题挑战模式2/5
单选题
难度系数:
2.下列判断正确的有几个( )个
①一个数的平方根等于它本身,这个数是0和1;②实数包括无理数和有理数;③是3的立方根;④无理数是带根号的数;⑤2的算术平方根是
①一个数的平方根等于它本身,这个数是0和1;②实数包括无理数和有理数;③是3的立方根;④无理数是带根号的数;⑤2的算术平方根是
A: 2 |
B: 3 |
C: 4 |
D: 5 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOeGn+iusOW5s+aWueagueOAgeeri+aWueagueOAgeeul+acr+W5s+aWueagueWPiuaXoOeQhuaVsOOAgeWunuaVsOeahOWumuS5iQ==
- 答案:Qg==
PGRpdj7op6PvvJrikaDlj6rmnIkw55qE5bmz5pa55qC5562J5LqO5a6D5pys6Lqr77yb4pGjz4DmmK/ml6DnkIbmlbDvvIzogIzPgOS4jeW4puagueWPt++8m+KRoeKRouKRpOato+ehrjwvZGl2Pg==
本课配套习题挑战模式3/5
单选题
难度系数:
3.下列说法正确的有( )个
(1)不存在绝对值最小的无理数;
(2)不存在绝对值最小的实数;
(3)不存在与本身的算术平方根相等的数;
(4)比正实数小的数都是负实数;
(5)非负实数中最小的数是0.
(1)不存在绝对值最小的无理数;
(2)不存在绝对值最小的实数;
(3)不存在与本身的算术平方根相等的数;
(4)比正实数小的数都是负实数;
(5)非负实数中最小的数是0.
A: 2 |
B: 3 |
C: 4 |
D: 5 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOagueaNruaXoOeQhuaVsOOAgee7neWvueWAvOOAgeeul+acr+W5s+aWueagueWSjOmdnui0n+WunuaVsOeahOWumuS5ieWIhuWIq+i/m+ihjOWIpOaWrQ==
- 答案:QQ==
PGRpdj7op6PvvJrvvIgx77yJ5LiN5a2Y5Zyo57ud5a+55YC85pyA5bCP55qE5peg55CG5pWw77yM77yIMe+8ieato+ehru+8mzxicj7vvIgy77yJ5a2Y5Zyo57ud5a+55YC85pyA5bCP55qE5a6e5pWwMO+8jO+8iDLvvInplJnor6/vvJs8YnI+77yIM++8ieWtmOWcqOS4juacrOi6q+eahOeul+acr+W5s+aWueagueebuOetieeahOaVsO+8jDDlkowx77yM77yIM++8iemUmeivr++8mzxicj7vvIg077yJ5q+U5q2j5a6e5pWw5bCP55qE5pWw6YO95piv6LSf5a6e5pWw77yM5LiN5q2j56Gu77yM6L+Y5pyJMO+8jO+8iDTvvInplJnor6/vvJs8YnI+77yINe+8iemdnui0n+WunuaVsOS4reacgOWwj+eahOaVsOaYrzDvvIzvvIg177yJ5q2j56GuLiA8L2Rpdj4=
本课配套习题挑战模式4/5
单选题
难度系数:
4.下面5个实数:3.1416,,其中是分数的有( )个
A: 2 |
B: 3 |
C: 4 |
D: 5 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOaciemZkOWwj+aVsOS4juaXoOmZkOW+queOr+Wwj+aVsOmDveaYr+WIhuaVsA==
- 答案:Qg==
PGRpdj7op6PvvJozLjE0MTbvvIw8aW1nIHdpZHRoPTY3IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzIzLzMxL3JCQUNFMU1NUjF6Z2FNQkJBQUFCMERKWkpIMDc4MS5wbmciPuaYr+WIhuaVsO+8jCA8aW1nIHdpZHRoPTUwIGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzAwLzQ0L3JCQUNGRk1NUjF6eVVVVVpBQUFDQXlvVDZHVTgxMy5wbmciPuaYr+aXoOeQhuaVsDwvZGl2Pg==
本课配套习题挑战模式5/5
单选题
难度系数:
5.下列说法中正确的是( )
A: 不循环小数是无理数 |
B: 分数不是有理数 |
C: 有理数都是有限小数 |
D: 3.1415926是有理数 |
一次做对,真牛!
+5奖励规则>
- 提示1:DQpB44CB5qC55o2u5peg55CG5pWw55qE5a6a5LmJ5Y2z5Y+v5Yik5a6a77ybQuOAgUPjgIFE5qC55o2u5pyJ55CG5pWw55qE5a6a5LmJ5Y2z5Y+v5Yik5a6a77yb
- 答案:RA==
PGRpdj7op6PvvJpB44CB5peg55CG5pWw5piv5peg6ZmQ5LiN5b6q546v5bCP5pWw77yM5pWF6YCJ6aG56ZSZ6K+v77ybPGJyPkLjgIHmnInnkIbmlbDljIXmi6zliIbmlbDvvIzmlYXpgInpobnplJnor6/vvJs8YnI+Q+OAgeaXoOmZkOW+queOr+Wwj+aVsOS5n+aYr+acieeQhuaVsO+8jOaVhemAiemhuemUmeivr++8mzxicj5E44CB5pyJ6ZmQ5bCP5pWw5piv5pyJ55CG5pWw77yM5pWF6YCJ6aG55q2j56GuLiA8L2Rpdj4=