BEIJING (AP) — Serbian President Aleksandar Vucic deepened ties with China on Monday during a trip to Beijing as he faced pressure at home from anti-government protests in his Balkan country, including a major rally that prompted clashes over the weekend. After a meeting with Chinese President Xi Jinping, the two leaders witnessed the signing of more than 20 cooperation agreements, covering areas such as politics, trade, technology and education, Chinese state broadcaster CCTV reported. During