immune

match the words with their meanings(副本) match the words with their meanings

The immune system is compared to a library.

Which<br/>is correct about peripheral immune organ () A: It<br/>is also called secondary immune organ B: It<br/>is the place where NK cell located C: It<br/>is the place where RBC located D: It<br/>is the place where immune response located E: It<br/>includes spleen. liver and mucosal immune system

Match the English in Column A with their meanings Match the English in Column A with their meanings in Column B.

From time to time we must look up words （）. A: the meanings of those we do not know B: whose meanings we are not familiar C: that we do not know their meanings D: whose meanings we do not know

The word “apparition ” carries complicated meanings in the poem “In a Station of the Metro”. What are the connotative meanings of it?

Animals are proved amoral and immune to pain.

Questions 19 to 21 are based on the passage you have just heard.19. A: The function of the human immune system. B: The cause of various auto-immune diseases. C: The viruses that may infect the human immune system. D: The change in people’s immune system as they get older.

Task 1(副本) Match the words on the left with their meanings on the right. Match the words on the left with their meanings on the right.