挑战习题
1/5单选题
难度:

1.若使分式有意义,则x应满足()
A x=0
B x≠0
C x=1
D x≠1
提示1:
IOWIhuW8j+acieaEj+S5ieeahOadoeS7tg==
提示2:
IDxpbWcgd2lkdGg9NTcgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMjMvNTkvckJBQ0UxTU1XVm56ZnRhVUFBQUJtRHBPRDY0MTU4LnBuZyI+
提示3:
IDxpbWcgd2lkdGg9MzMgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMDAvNkEvckJBQ0ZGTU1XVm1BV1FqWkFBQUJhQjhfM1F3NDYxLnBuZyI+
正确答案:RA==
PGRpdj7op6PvvJrmoLnmja7popjmhI/lvpfvvJp4LTHiiaAw77yM6Kej5b6X77yaeOKJoDEuIDxicj7mlYXpgIlELiA8L2Rpdj4=