问题
单项选择题 A1型题
洗必泰抗菌作用机制不包括（）
A.减少了唾液中能吸附到牙面上的细菌数
B.使唾液糖蛋白对牙面的吸附能力减弱，抑制获得性膜和菌斑的形成
C.与牙面釉质结合，阻碍唾液细菌对牙面的吸附
D.改变菌斑细菌的内聚力，控制细菌的聚集和对牙面的吸附
E.可抑制细菌产酸，减少龋病的发生
答案
参考答案：E
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洗必泰抗菌作用机制不包括（）
A.减少了唾液中能吸附到牙面上的细菌数
B.使唾液糖蛋白对牙面的吸附能力减弱，抑制获得性膜和菌斑的形成
C.与牙面釉质结合，阻碍唾液细菌对牙面的吸附
D.改变菌斑细菌的内聚力，控制细菌的聚集和对牙面的吸附
E.可抑制细菌产酸，减少龋病的发生
参考答案：E
A group of class friends，highly successful in their careers，got together to visit their old university professor .The conversation soon 36 into complaints about stress in work and life Offering his guests coffee，the professor went to the 37 and returned with a large pot of coffee and a variety of 38 —porcelain，plastic，glass，crystal，some 39 -looking，some expensive，some delicate—telling them to 40 themselves to the coffee When all the students had a cup of coffee in 41 ,the professor said：“If you noticed，all the nice-looking expensive cups were taken up， 42 behind the plain and cheap ones. While it is normal for you to 43 only the best for yourselves，that is the 44 of your problems and stress. Be assured that the cup itself 45 no quality to the coffee. In most cases it is just more expensive and in some cases even hides what we drink . 46 all of you really wanted was coffee，not the cup，but you 47 went for the best cups. And then you began 48 each other’s cups. Now consider this：Life is the 49 ，the jobs，money and 50 in society are the cups . They are Just tools to hold and contain life，and the type of cup we have does not define nor change the quality of life we 51 . Sometimes，by concentrating only on the cup，we 52 to enjoy the coffee God has 53 us. God brews the coffee，not the cups…Enjoy your coffee!” The happiest people don’t have the best of everything . They Just 54 the best of everything . Live simply. Love generously. Care deeply . Speak kindly . Leave the 55 to God .
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