1阅读下面短文,掌握其大意,然后从36-55各题所给的四个选项(A、B、C和D)中,选出最佳选项
CanadiansmartphonemakerResearchInMotion(RIM),whichmakestheBlackBerry,saysit’sback
Thecompanyis36toreclaimamarketitoncedominatedby37twonewdevices
Thelastfewyearshavebeenapainfultimeforthecompanyascustomersdeserteditsplatformin38ofnewerandmore39devices
Thismaybethecompany’slastchanceto40avitalplayerinanincreasinglycrowdedmarketplace
Twobrandnewdevicesareperhapsafresh41foracompanythathasseenitsglobalmarketshare42from20percentthreeyearsagotojustover3percenttoday
ForBlackBerryCEOThorstenHeins,it’sanotherchancetoremakeafaded43
“Wehave44beenonajourneyoftransformation,notonlyajourneytotransformourbusinessandourbrand,45onethatItruly46transformsmobilecommunicationsintotruemobilecomputing,”hesaid
Thecompanypromisesthesame47levelofnetworksecuritytheBlac