China's fixed-asset investment went up 5.5 percent in the first two months of this year, 0.4 percentage points higher than the full-year growth rate of 2022, data from the National Bureau of Statistics showed Wednesday.China's fixed-asset investment went up 5.5 percent in the first two months of this year, 0.4 percentage points higher than the full-year growth rate of 2022, data from the National Bureau of Statistics showed Wednesday.