挑战习题
1/5单选题
难度:

1.已知 ,且a,b,c互不相等,则
A a+b+c
B 0
C
D 1
提示1:
IOinguWvn+i/nuetieW8j+eahOeJueW+gQ==
提示2:
IOiuvui/nuetieW8j+etieS6jmvvvIzlj6/lvpfvvJo8aW1nIHdpZHRoPTE1NCBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8wMC81QS9yQkFDRkZNTVUwVFQzZ1BFQUFBQzNDMlNpMlU3NTYucG5nIj4=
提示3:
IOeUqOWFtuWug+Wtl+avjeihqOekungseSx6ICzkuLo8aW1nIHdpZHRoPTUwIGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzAwLzVBL3JCQUNGRk1NVTBTeWgzaWhBQUFCNG5zWnAyczQyMy5wbmciPu+8jDxpbWcgd2lkdGg9NTkgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMjMvNDcvckJBQ0UxTU1VMFNSNVNsbUFBQUI5d0VhWnpjMzIxLnBuZyI+77yMPGltZyB3aWR0aD01OCBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8wMC81QS9yQkFDRkZNTVUwU2pXTzdPQUFBQjVqNXZVRGc5NTQucG5nIj4=
正确答案:Qg==
PGRpdj7op6PvvJo8aW1nIHdpZHRoPTMgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMjMvNDcvckJBQ0UxTU1VMFhEajNBS0FBQUFxRWY1NFJJMTc1LnBuZyI+5qC55o2u5bey55+l6K6+PGltZyB3aWR0aD0xNTQgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMDAvNUEvckJBQ0ZGTU1VMFRUM2dQRUFBQUMzQzJTaTJVNzU2LnBuZyI+PC9kaXY+PGRpdj7liJnmnInvvJo8aW1nIHdpZHRoPTUwIGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzAwLzVBL3JCQUNGRk1NVTBTeWgzaWhBQUFCNG5zWnAyczQyMy5wbmciPu+8jDxpbWcgd2lkdGg9NTkgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMjMvNDcvckJBQ0UxTU1VMFNSNVNsbUFBQUI5d0VhWnpjMzIxLnBuZyI+77yMPGltZyB3aWR0aD01OCBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8wMC81QS9yQkFDRkZNTVUwU2pXTzdPQUFBQjVqNXZVRGc5NTQucG5nIj7vvIw8YnI+5YiZPGltZyB3aWR0aD0yMTQgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMDAvNUEvckJBQ0ZGTU1VMFdET3NxcUFBQURzU2V1ZWxFODc2LnBuZyI+PGJyPuaVhemAiUI8L2Rpdj4=