Using wechat scanning code QR code < / P > < p > to share with friends and circles of friends < / P > < p > comprehensive Russian news agency, RIA Novosti and other media reported that Elon Musk, founder of American space exploration technology company (SpaceX), tweeted in English, Russian and Ukrainian on the 14th local time and shouted to Russian President Vladimir Putin, "I hereby challenge Vladimir Putin. Take it alone. The bet is Ukraine." < p > as the conflict between Russia and Ukraine continues, the international oil price has risen sharply recently. Europe, which depends on Russian energy, also faces the problem of energy supply. On March 4, musk proposed to increase global oil and gas production, saying that "extraordinary measures are needed in extraordinary times". "Obviously, this will have a negative impact on Tesla, but sustainable energy solutions simply can't respond immediately to make up for Russia's oil and gas exports," he added in a follow-up tweet