China has overtaken Australia as the top destination in Asia-Pacific for cross-border investments in commercial property for the first time, with Shanghai the preferred city for overseas buyers, according to a survey by CBRE.About a quarter, or 25.8 per cent, of the 348 global real estate investors polled between November and January said they were interested in China, up 3.7 percentage points from a year ago.The office segment remained the most popular sector, with more than a third of…