题目

In much of Asia, especially the so-called “rice bowl” cultures of China, Japan, Korea,    41    Vietnam, food is usually eaten with chopsticks. Chopsticks are usually two long, thin pieces of wood or bamboo. They can also be made of plastic, animal bone or metal. Sometimes chopsticks are quite artistic. Truly elegant chopsticks might    42    (make) of gold and silver with Chinese characters. Skilled workers also combine various hardwoods and metal    43    (create) special designs. The Chinese have used chopsticks for five thousand years. People probably cooked直接写得数． 0.4×0.02=0.13×0.5=3.6÷0.04=3.57÷0.7=9.6÷0.1=15×0.06=5.8×2.5×0.4=3.2-0.125×8=75×0.4=42÷0.7=0.45÷0.9+3=3a-0.5a+a=