问题详情：
阅读下面材料, 从每题所给的A、B、C、D四个选项中选出最佳选项。
21. What you have just read is a/an ______________.
A. ad for clothes B. movie review C. news report D. food order
22. From the passage above, we can know that ____________.
A. the swimsuit is made of silk and cotton
B. there are five sizes available for the T-shirts
C. the order number of the dark blue jacket is CQ 8200
D. both the T-shirt and the jacket can be washed by hand
23. How much do you need to pay if you get four jackets?
A. $200. B. $300. C. $400. D. $ 500.
【回答】
21. A 22. C 23. B
知识点：广告布告类
题型：阅读理解
