题目

请认真阅读下面短文，从短文后各题所给的A、B、C. D四个选项中，选出最佳选项。 The Double Seven Festival is atraditional Chinese festival. It has a longer history than the1of Valentine's Day in theWest. The origin of this festival is related to a cowboyand a weaving girl, 2love story has become apart of the Chinese culture.3there are many differentversions of the story, the most popular one begins with a poor cowboy. Livingwith his elder and4brother, who treated himbadly, the cowboy looked after an old cow every day. Though life was tough andboring, he5it in silen整数乘法的运算定律同样适用于分数乘法______．