1.Today's cities are ... than cities in previous times. A.lots larger B.much larger C.as larger D.the largest 2.Nha Trang,... a coastal city in Central Vietnam, is generally recognized as Vietnam's main beach destination A.delightful B.drawbacks C.problems D.dynamic 3.London is one of the largest cities in the world. Its population is a lot smaller than Tokyo but it is by far the most popular tourist... A.wandering B.problem C.busiest D.destination

Trình bày cách pha chế 500g CuSO4 10% CuSO4