最新报道:U.S. stock futures rise slightly as investors await Fed Chair Powell's testimony before Congress for clues on interest rate policy. Meanwhile, Bitcoin rebounds above $57,000 after Tuesday's sell-off, with crypto markets stabilizing. In corporate news, Tesla shares gain pre-market after Elon Musk confirms the company will unveil its robotaxi prototype in August. Asian markets closed mixed as China's inflation data came in below expectations, raising concerns about economic recovery. Oil prices edge higher amid Middle East tensions, with Brent crude trading near $85 per barrel.