在零部件自制和外购的决策中，如果零部件的需用量尚不确定，应当采用的决策方法是（）。 ["相关损益分析法","差别损益分析法","相关成本分析法","成本无差别点法"]
奥氏体
Refer to the exhibit. A display of class maps for a configuration is shown in the exhibit. What will the class-map "all-traffic" match? （） [" all voice traffic"," all traffic with dscp 18 or dscp 43"," all traffic with dscp 18 and dscp 43"," all traffic with ip precedence 0 or 1"," all traffic with ip precedence 4 and 5"]
某工业建设项目，需进口一批生产设备，CIF价为200万美元，银行财务费费率为0.5%，外贸手续费费率为1.5%，进口关税税率为22%，增值税税率为17%，美元对人民币汇率为1：6.3，则该设备应缴纳的增值税为（）万元人民币。 ["A.282.20 ","B.261.32 ","C.349.93 ","D.41.48"]
Which statement describes the call behavior of the Cisco Unified Wireless IP Phone 7921G when it roams from 802.11b to 802.11a?（） ["The phone does a directed call hangup on 802.11b，then does an auto-redial on 802.11a，creating a new call.","The phone does a directed call hangup on 802.11b， then the user does a redial on 802.11a，creating a new call.","The phone does a disassociation on 802.11b and an association on 802.11a，and call remains up if the subnet has not changed.","The phone does not roam from 802.11b to 802.11a when on an active call.","The phone must switch network profiles to roam from 802.11b to 802.11a."]
镜像阶段论
