 European shares opened little changed on Wednesday as a batch of mixed earnings reports and simmering U.S.-China tensions added to doubts about a swift economic recovery even as many countries eased lockdown measures. The pan-European STOXX 600 index was flat as losses in oil and gas sector, following a recent surge, offset gains in healthcare shares. The global mood also remained fragile as U.S. President Donald Trump again took aim at China, urging it to be transparent about the origins of the novel coronavirus outbreak. 