原子吸收分光光度法用的空心阴极灯是一种特殊的（）管，它的阴极是由（）制成。 发布时间：2018-09-04 22:07 │ 来源：www.tikuol.com 题型：填空题 问题： 原子吸收分光光度法用的空心阴极灯是一种特殊的（）管，它的阴极是由（）制成。
题型：填空题 根据短文内容，从短文后的五个选项中选出能填入空白处的最佳选项。选项中有一项为多余选项。 A. The food is usually good, and they are expensive.B. We can't have delicious food in America.C. Usually you have to wait for a waiter to lead you to a table.D. Don't forget to tip the waiter.E. Some restaurants are open for breakfast; others are open twenty-four hours a day. Eating out is one of the joys in the USA . 1 But the waiters are fine. Choosing a Restaurant 2 Many restaurants call themselves "family restaurants". They serve good food, and they may alsoserve smaller and cheaper children's meals. When to Eat Many restaurants open at about 11:30 am. It is the time for lunch in the USA. Some keep open until the evening, so it is possible to have a meal in the afternoon. Reserving a Table Eating out is rather popular in the USA. And it is better to reserve a table. Sometimes you will see people waiting for tables at restaurants. Arriving at a Restaurant When you arrive at most restaurants, you should not just go in and sit down before you see the words. Please seat yourself". 3 0ften there will be words "Please wait to be seated". Paying the Bill At many restaurants you can ask the waiter to bring the bill and then pay it on the way out. 4 查看答案