配平下列化学方程式

（1）　____ Al+____ 　O₂____ 　Al₂O₃

（2）　____ 　Zn+____ 　HCl═____ 　ZnCl₂+____ H₂↑

（3）　____ CH₄+____ O₂____ CO₂+____ H₂O

（4）____ 　KClO₃____ 　KCl+____ 　O₂↑．

    Each year, thousands of people come to Shaanxi, China, to visit the Terracotta Army, which shows the life of Qin Shi Huang,____country's first emperor.

    As one of the most famous tourist sights in the world, the Terracotta Army is a form of funerary (葬礼的) art____(bury) with the First Emperor in 210 to 209 BC. It was designed____(protect) the emperor in his afterlife.

Since their ____(discover), experts have questioned whether the life-size models of soldiers____(base) on real warriors (勇士) or whether they came off a production line.

    In October a BBC documentary ( 纪录片) the Greatest Tomb on Earth: Secrets of Ancient China, suggested the inspiration for the Terracotta Warriors may have come____Ancient Greece, about____Archaeologist Li Xiuzhen said, "We now have evidence that close contact did exist between the First Emperor's China and the West."

    On the 41st International Museum Day, it was____(official) announced that new technology has just made____possible for visitors to be guided. Thanks to an interactive(交互式) 360-degree video, visitors can choose either to view the____(figure) close-up or from a distance.