农业税不指针对农业生产。( )
参考答案：错
— Mom, may I play computer games just for a while?
— ________!Dad is writing his paper.[ ]
A. Help yourself
B. It's up to you
C. Behave yourself
D. Go ahead
1850 TSS支持哪几种PTN管道传递和汇聚方式？（）
A、全程PW/LSP
B、分段PW/LSP
C、H-VPLS
D、基于VLAN汇聚
