降雪对北京的蔬菜市场供应造成了一定程度的影响。据报道：菠菜、

搜题请搜索小程序“爱下问搜题”

问题选择题

降雪对北京的蔬菜市场供应造成了一定程度的影响。据报道：菠菜、油菜、油麦菜等绿叶蔬菜的价格受降雪影响有较大幅度的上涨。蔬菜价格变化的主要原因是

A．价值决定价格

B．供求关系的变化

C．商品价值量的变化

D．个别劳动时间的变化

答案

答案：B

填空题

单词拼写。

1. It's not very ______ (方便的) to pay by cash.

2. This Chinese square table is a very valuable piece of ______ (家具).

3. My uncle got ______ (订婚) to a beautiful girl last Sunday.

4. The house stood ______ (空的)for a while.

5. Faced with a new ______ (挑战), the scientists are working day and night.

6. His father was ______ (沉溺于) to drugs.

7. You will find the Bird's Nest ______ (设计) in an unusual way.

8. I love the writing ______ (风格) of this great writer.

9. We paid a vist to a beautiful park, ______ (座落于) on a river bank.

10. The company's head office is in the US, but it has ______ (分支机构) all over the world.

填空题

在无线电波段划分中，VHF表示甚高频，其频率范围为（）兆赫。