注射成型
伪造，变造金融票证罪包括（） 。 ["伪造变造汇票，支票和本票","伪造变造委托收款凭证","伪造变造信用证","伪造变造银行存单"]
VAR模型
In Frame Relay， FECN messages indicating congestion are sent or received by which of following？（） ["Sent by the destination","Received by the sender","Received by the destination","Sent by the sender"]
生物修复的特点与原则是什么？
what is the advantage of policing opposite to shaping？
