A-A+
German technology conglomerate Siemens showed
问题详情
German technology conglomerate Siemens showed its new mobile phones______.
A．at a news conference
B．at a mobile trade show
C．at a mobile handset unit
D．at a mass market
参考答案
正确答案：B
解析：本题是细节题。西门子在手机交易展上推出多款新手机: Rudi Lamprecht, who runs Siemens's mobile handset unit, told a news conference here at 3GSM, a mobile trade show.
