诊断可能是A．急性阑尾炎 B．肠套叠 C．风湿性关节炎 D．过敏性紫癜 E．急性肾小

将文中后7行文字转换成一个7行2列的表格，设置表格居中、表格列宽为5厘米、行高为0.7厘米；设置表格中第一行文字中部居中，其余文字中部右对齐。

简述整流工序工艺流程。

用于检查结构构件混凝土质量的试样留置。每拌制（）且不超过（）的同配合比的混凝土，其取样不得小于一次。

A.80盘；100m³

B.100盘；100m³

C.100盘；200m³

D.50盘；100m³

保险公司在选择营销渠道时，需要考虑的最重要的因素是能否（ ）：①以最小的代价推销保单；②最有效地推销保单；③最大程度地推销保单；④获得最佳的参保人群。

A．①②

B．①②③

C．①②③④

D．①③④

Americans are often in a hurry. They rush to work, rush home, and rush through their meals. Workers and students usually have only half hour or an hour for lunch. As a result, a lot of Americans go and eat in fast food restaurants. The service is quick, and the prices are cheap.
What do fast food restaurants serve Of course, many of them have hot dogs, hamburgers, fried chicken, pizza, or ice cream. But other fast food restaurants specialize (专门从事) in different foods. Some places serve roast beef. Some serve fish and seafood. In fact, you can find popular foreign dishes in fast food restaurants, too. There are Italian restaurants with Italian sausage (香肠) and spaghetti (通心粉). And there are Chinese restaurants with Cantonese (粤式的) or Sichuan foods.

Why do many Americans eat their meals in fast food restaurants
[A] Because these restaurants provide a rich variety of foods.
[B] Because they meet the needs of the American lifestyle.
[C] Because many Americans change their tastes frequently.
[D] Because many Americans have little patience to cook meals.

A lot of fast food restaurants are franchises (产品经销特许权), a very popular form of business in the United States. There are many restaurants in a franchise, and each franchise has a different owner. However, all of the restaurants are under one central management, and the name of the restaurants is the same everywhere in the United States — and in foreign countries, too. This kind of central control guarantees that, for example McDonald’s hamburgers and Kentucky Fried Chicken taste the same everywhere.
In modern American life, fast food restaurants are very important. They provide quick and inexpensive meals for American people in a hurry.