问题
单项选择题 A1/A2型题
肠道杆菌中，重要的荚膜或包膜抗原是（）
A.O抗原
B.H抗原
C.伤寒的Vi抗原
D.以上都是
E.以上都不是
答案
参考答案：C
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肠道杆菌中，重要的荚膜或包膜抗原是（）
A.O抗原
B.H抗原
C.伤寒的Vi抗原
D.以上都是
E.以上都不是
参考答案：C
In your life，nothing happens by chance or by means of good or bad luck．Everything to test the limits of your soul．Without these small tests，life would be like a smoothly paved， ，flat road to nowhere．Safe and comfortable but dull and pointless． If someone you or breaks your heart，forgive them for they have helped you trust and the importance of being cautious to whom you open your heart to．If someone loves you，love them back ，not only because they love you，but because they are teaching you to love and opening your heart and to things you would have never felt or seen without them． Make every day count．Appreciate every and take from it everything that you possibly can，for you will never be able to experience it again．
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