Refer to the exhibit.Statements A,B,C,and D of ACL 10 have been entered in the shown order and appled to interface E0 inbound,to prevent all hosts(except those whose addresses are the first and last IP of subnet 172.21.1.128/28) from accessing the network.But as is,the ACL dose not restrict anyone from the network.How can the ACL statements be re-arranged so that the system works as intended?（） ["CDBA","DBAC","ACDB","BADC"]
污染物对种群的影响
简述对活塞的要求？
在OptiX BWS 320G系统中，G.652光纤的衰减系数在实际工程中一般用____来计算，而 在工作窗口的色散系数可以按照____来计算，如下正确的是（） ["0.20dB\/km、17ps\/nm.km","0.275dB\/km、20ps\/nm.km","0.40dB\/km、17ps\/nm.km","0.40dB\/km、20ps\/nm.km"]
必修课程的本质特点就是（），它是社会权威在课程中的体现。选修课程一般分为（）与（）两类。
办学体制多元化对我国教育事业发展具有什么意义？
