某个体工商户拖欠个人所得税税款2万元，经数次催缴仍未交纳。主管税务机关对其采取的下列

作为重要建筑材料的花岗岩和大理岩在成因上分属于  

A．岩浆岩和沉积岩

B．岩浆岩和变质岩

C．沉积岩和变质岩

D．变质岩和沉积岩

补全对话。

A: Have you made any holiday plans?

B: Yes, I've decided to go camping.

A: That's great!      1      ?

B: For a week. I only have a five-day holiday.

A: So,      2      ?

B: I'll probably leave next week.

A: And where are you going to go?

B:       3     . Perhaps I will go to one of the national parks.

A: National parks? That sounds wonderful.

B:       4     ? Where did you plan to go?

A: I would stay at home. A famous band would perform in our city in a few days. They would play

    some famous country hits. It was interesting. Then they're going to go on a world tour.

B: Wow! Fantastic!      5      !

A: Thank you!

《新唐书•百官志》载：“两京诸市置令一人，从六品上；丞二人，正八品上。掌财货交易，度量器物，辨其真伪轻重。”这反映了唐代                        （   ）

A．有专门的手工业管理机构

B．实行整齐划一的坊市制

C．城市的经济功能大大增强

D．注重对商业活动的管理

过硫酸钾氧化—紫外分光光度法测定水中总氮，为什么要在两个波长测定吸光度？

市场体系的三大支柱是（）。

A．商品市场、技术和信息市场、房地产市场

B．商品市场、资本市场、劳动力市场

C．资本市场、技术和信息市场、劳动力市场

D．劳动力市场、商品市场、技术和信息市场