News At Seven-Thirty highlights:Exco approves civil service pay rise of up to 7.24 percent;Germany determines sprouts are not the source of deadly E. coli.;HK to isolate E.coli victim;More than a dozen killed in Guizhou flooding;Dominique Strauss-Kahn denies sex assault charges;Apple unveils iCloud service;Jeremy Godfrey alleges political favouritism in selection of operator of online learning support programme;Lily Chiang and two other defendants denied bail;7 overseas scientists and academics awarded 2011 Shaw Prize;Government inspectors may soon be able to enlist a new little helper to check trees for diseases and make sure they’re safe.