阅读下面一段文字,完成后面练习题

    我尽一切可能向他说明我买这双倒霉靴子时的情况。但是他的面孔和声调使我获得很

深刻的印象，结果在以后几分钟里，我定了许多靴子。这下可糟了！这些靴子比以前的格外经穿，差不多多穿了两年，我也没想到要到他那里去一趟。

1921年苏俄实行固定的粮食税，1933年美国政府规定由政府收购剩余农产品。两者的相似之处是（    ）

2CO+O₂2CO₂，该反应属于（　　）

    All around the world, people drink tea. But tea does not mean the same thing to everyone. In different countries, people have very different ideas about drinking tea.

    In China, for example, people always drink tea when they are getting together. They drink it at any time of the day at homes or in teahouses. They prefer plain tea, with nothing else in it.

    Tea is also important in Japan. The Japanese have a special way of serving tea called tea ceremony（茶道）. It is very old and full of meaning. Everything must be done in a special way in the ceremony. There is even a special room for it in Japanese homes.

    Another tea-drinking country is England. In England, the late afternoon is "tea time". Almost everyone has a cup of tea then. The English usually make tea in a teapot and drink it with milk and sugar. They also eat cakes, cookies and a few sandwiches at teatime. This is the so-called "Afternoon Tea" in Britain.

    In the United States, people drink tea mostly for breakfast or after meals. Americans usually use tea bags to make their tea. Tea bags are faster and easier than making tea in teapots. In summer, many Americans drink cold tea—"iced tea". Sometimes they drink canned iced tea, just as soda.