题目

We travel the world to experience an unfamiliar culture. It’s an added bonus when the destination happens to be home to several cultures, thanks to its diverse population.TorontoToronto happens to be one of the most diverse in the world. In fact, nearly half of Toronto’s residents were born in another country. This cultural mix is most apparent in the city’s community pockets, including Chinatown, Greektown, Little Italy etc. And although English is most widely spoken here, the streets are constantly filled with over 140 different languages.Los AngelesLos Angeles is known and loved for i下列离子方程式书写正确的是A．氢氧化钡溶液与稀硫酸反应 SO42- + Ba2+ = BaSO4↓B．氢氧化钠溶液与稀硫酸反应 OH-+ H+ = H2OC．铁与氯化铁溶液反应 Fe + Fe3+ = 2Fe2+D．碳酸钙溶于稀盐酸中 CO32- + 2H+ = H2O + CO2↑