在汉字系统中，为了方便和确切地表示汉字涉及多种代码，如（）码、（）码、（）码、（）码、和（）码。
参考答案：国标；输入；机内；字形；交换
城市规划经批准后，城市人民政府应当公布，公布的目的是（）。
A.便于开发单位和群众了解、参与和监督
B.便于群众了解、参与和监督
C.便于开发单位积极参与开发
D.便于招商引资、吸收各方面来参与开发和建设
选择下列句子完成下面对话。（共5小题，每小题1分）
A: Good morning. What can I do for you?
B: I want a mobile phone, but I don’t know which one to buy.
A: ________ 小题1: Which brand do you like best, an HTC, a Nokia or an iPhone 5?
小题1:
B: I know little about them. Which one sells best?
A: Mm! ________ 小题2:
小题2:
B: How much is the iPhone 5?
A: ________ 小题3:
小题3:
B: Oh, they are too expensive. I want the one which is the newest but not too expensive.
A: What about this one? It works well and is very cheap.
B: ________ 小题4:
小题4:
A: 1,000 yuan.
B: Is there any discount ( 折扣)? How about 800 yuan?
A: ________ 小题5:
小题5:
B: OK, I’ll take it.
