对于一台运行MPLS设备的标签转发表来说，对于相同的路由（下一跳也相同），出标签则（）。
A.一定不同
B.一定相同
C.可能相同
参考答案：B
On the night of February 14th, 2011, all the Chinese _________ by Guo Mingyi, a very common worker who ________ more than 180 poor children since 1994.
A．are moved, helps
B．moved, helped
C．were moved, has helped
D．moved, have been helped
如果非接触式IC卡消费时显示“请输入密码”，下列表述错误的是（）.
A.此卡脱机账户余额不足
B.此卡脱机账户有密码
C.此卡需输入密码后联机交易
D.持卡人可放弃交易，不会产生扣账
