题目内容：

阅读下面短文，从每小题所给的A、B、C三个选项中，选出一个最佳选项。

Major Cold(大寒) begins on Jan. 20 and ends on Feb. 3 in 2018. Major Cold is the last solar term(节气) in winter in a year. Here are some things you should know about Major Cold.

the La Ba Festival

An important day during Major Cold is the La Ba Festival. It was a day of thanks for a good harvest and sacrifice(祭祀) to ancestors. People usually eat La Ba porridge, a porridge with eight kinds of mixed grains and corn. The festival is celebrated on the eighth day of the 12th lunar month and is one of the most important traditional festivals in Chinese culture. It is also a prelude(前奏) to the Chinese Lunar(阴历的)New Year. This year the La Ba Festival falls on Jan. 24.

Eating “dispelling(驱散) cold cake”

During Major Cold, People in Beijing have a habit of eating “dispelling cold cake”， a kind of rice cake. Sticky rice(糯米), the cake's main ingredient, has more sugar than rice. It can make people feel warm all over their bodies. In Chinese the word “rice cake” has the same pronunciation with the word “higher in a new year”. It's a symbol of good luck and promotion(提升)．

Buying sesame straw(芝麻秆)

Major Cold always coincides with(与……一致) the end of the year in lunar calendar. In some areas of China, people always look forward to buying sesame straw during this period because of the old saying, “Sesame_in_bloom—rising_steadily”. This saying is used to describe either the rising of living standards or the progress in thought, studies or skills.

1.How long does the Major Cold last in 2018?

A. 10 days.    B. 15 days.    C. 20 days.

2.What do people eat on the La Ba Festival?

A. La Ba porridge.    B. Dispelling cold cake.    C. Sesame straw.

3.What's the symbol of “dispelling cold cake”？

A. Good luck and promotion.    B. Rick cake.    C. Warmth.

4.What does the underlined phrase “Sesame in bloom—rising steadily.” mean in Chinese?

A. 芝麻开花节节高。    B. 人往高处走。    C. 天上掉馅饼。

5.Which is RIGHT according to the passage?

A. “Dispelling cold cake” and La Ba porridge are traditional food on Major Cold.

B. Major Cold is a time to thank for a good harvest and sacrifice to ancestors.

C. The tradition of buying sesame straw came from a folk legend(传说)．