挑战习题
1/5单选题
难度:

1.方程|1-2x|=3的解是( )
A
B
C
D
提示1:
IOe7neWvueWAvOetieS6jjPnmoTmlbDmmK8z5ZKMLTM=
提示2:
IOW9k3g8aW1nIHdpZHRoPTMxIGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwL0YwLzU3L3JCQUNGRk1GLThlQzd6TkhBQUFCVkdYangyUTM3NS5wbmciPuaXtu+8jOaWueeoi+S4ujEtMng9M++8m+W9k3g8aW1nIHdpZHRoPTMxIGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzEzLzE2L3JCQUNFMU1GLThmQUNDakpBQUFCWUV3amthWTgxMC5wbmciPuaXtu+8jOaWueeoi+S4ui3vvIgxLTJ477yJPTM=
提示3:
IOWIhuaDheWGteaxguWHuuino+WNs+WPrw==
正确答案:RA==
PGRpdj7op6PvvJrlvZMxLTJ44omlMOWNs3jiiaQ8aW1nIHdpZHRoPTEyIGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzEzLzE2L3JCQUNFMU1GLThmd1N3UVRBQUFCRVV1WFYyYzM1NS5wbmciPuaXtu+8jOaWueeoi+S4ujEtMng9M++8jDxicj7op6PlvpfvvJp4PS0x77yMPGJyPuW9kzEtMnjvvJww5Y2zeO+8njxpbWcgd2lkdGg9MTIgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMTMvMTYvckJBQ0UxTUYtOGZ3U3dRVEFBQUJFVXVYVjJjMzU1LnBuZyI+5pe277yM5pa556iL5Li6Le+8iDEtMnjvvIk9M++8jDxicj7op6PlvpfvvJp4PTIuIDxicj7mlYXpgIlELiA8L2Rpdj4=