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2若向量,且,則實(shí)數(shù)k=( )A、-1 B、0 C、 D、五、填空題(本大題共4小題,每小題6分,共24分)把答案填在答題卡相應(yīng)題號(hào)的橫線上。(2)已知,且是第三象限的角,求的值。未選、錯(cuò)選或多選均不得分。 red represents luck , happiness and celebration in many Asian cultures.Korean rice cake soup:No Korean New Year celebration is plete without tteokguk , or rice cake soup. Eating a bowl of it is said to bring a person a long life. Eating tteokguk also represents growing another year older. Koreans may ask a person their age by saying “How many bowls of tteokguk have you eaten?” The soup includes vegetables and thin , round pieces of rice cake. The round shape is said to represent old Korean money. So tteokguk is said to bring riches, too.FishIn many places in Asia, fish is another lucky food for the New Year. In Chinese , the word for fish sounds like the word for more or extra. So , fish also represents wealth. To be especially lucky, there should be some left for a meat the next day. That suggests your riches will continue throughout the new year.42. What is the Lunar New Year called in China?( ) A. Tet B. Gac C. Seollal D. Chunjie43. Which food is popular in Vietnam in the Lunar New Year? ( ) A. Spring rolls B. Tteokguk C. Xoigac D. Soup44. In Korea , “How many bowls of tteokguk have you eaten?” may mean “( )”. A. How old are you B. What are you doing C. What’s the matter with you? D. How many bowls do you have?45. According to the passage , in many places in Asia, fish is the symbol of ( ). A. life B. home C. reunion D. wealth46. Which would be the best title of the passage? ( )