By Michael Martina WASHINGTON (Reuters) – Sanctions imposed on Russia over its war in Ukraine should give China a “good understanding” of the consequences it could face if it provides material support to Moscow, U.S. Deputy Secretary of State Wendy Sherman said on Wednesday. Sherman said the “range of sanctions” and export controls coordinated among U.S. allies and partners against Russian President Vladimir Putin, the country’s economy, and oligarchs, should serve as an example for China’s leader Xi Jinping. “It gives President Xi, I think, a pretty good understanding of what might come his w…