chopsticks

1.Of the following statements of why Chinese use chopsticks， which is wrong？2.What types of chopsticks are mentioned in this video？3.It is a tradition in some areas to give chopsticks as a gift to newlyweds because chopsticks mean “have babies soon”.。4.Compared with chopsticks and forks, it is uncultivated to use hands alone to eat.5.Chopsticks and knives are the two most typical table wares of the East and the West, representing two kinds of different wisdom.6.When we use chopsticks, which finger doesn’t work?7.The origin of chopsticks or Zhu in China is related to（）.8.The（）principle of mechanics was applied into the practice of using chopsticks.9.One of the taboo of using chopsticks is not to（）the bowl with chopsticks.10.Of the following statements of why Chinese use chopsticks, which is wrong?