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二、阅读判断 16. Viruses can only live inside people or animals. 答案：B 17. All bacteria cause illnesses. 答案：B 18. Washing your skin can prevent some illnesses. 答案：A 19. Germs can enter the body through the eyes. 答案：A 20. The heart contains the bodys strongest muscle. 答案：C 21. After they kill germs, antibodies stay in the body. 答案：A 22. Vaccines can make you sick. 答案：B 三：概括大意和完成句子： 23题答案：B 24题答案：A 25题答案：F 26题答案：D A. The Relapsing Form of MS B. The Definition of MS C. The Cause of MS D. The Development of MS E. The Treatment of MS F. The Primary Progressive Form of MS 27. MS affects the young adults of nerve cells between the body and ______. 答案：B 28. An MS patient can feel fine for years without being affected much by the ______. | 
