Activity in China’s factory sector expanded slightly in June though not as much as expected, while growth in the services sector sped up, official surveys showed, offering some signs that the world’s second-largest economy may be starting to slowly level out after a raft of support measures. Beijing has rolled out a flurry of steps since last year, including interest rate cuts and more infrastructure spending, but analysts remain wary about the outlook given the still-weak property market, erratic global demand for China’s exports and fears of a collapse in its wild stock market.