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."]
在测试控制运行的有效性时，CPA获取关于控制是否有效运行的审计证据的来源不包括（）。
重型汽车离合器液压操纵机构弹簧助力装置中踏板通过调整杆推动三角板绕其轴销逆时针转动，随着踏板的下移，当三角板带动助力弹簧从下向上移动到三角板轴销的上方时，弹簧的力矩则与踏板的力矩（），从而起到助力作用。 ["大小相等","方向相反","方向相同","互相抵消"]
You are the network consultant from passguide.com. You should tell your clients Two technologies help them save much time from complex computing. （） ["VPN","InfiniBand","SCSI over IP","Remote Direct Memory Acce"]
110KV及以上的油浸式电力变压器的主绝缘采用（）结构，这种结构可提高（），缩小绝缘尺度，节约材料。
