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问题 多项选择题

克罗恩病和溃疡性结肠炎均为炎症性肠病，其钡剂灌肠X线改变，下列哪些情况支持克罗恩病的诊断？（）

A.结肠袋消失，铅管状

B.病变呈节段性分布

C.回肠末端线样征

D.纵行性溃疡或裂沟

E.回盲部激惹征

答案

参考答案：B, C, D

阅读理解
阅读理解。
Read the directions of medicine before you take it．
Adults
  2 tablespoonfuls  
Children: according to age
10～14 years
6 --10  years
3～6 years
4 teaspoonfuls
2 teaspoonfuls
1 teaspoonful
     Repeat above dose every l/2 hour to 1 hour if  needed until 8 doses are taken. lf you do not get better
within two days, see a doctor.
     SHAKE WELL BEFORF USING
生词: adult 成年人  according to 根据   dose剂量   tablespoonful 一汤匙的量  teaspoonful一茶匙的量
根据短文内容，回答下列问题。
1. Where can you usually see the directions?
                                                                                                        
2. What should be done before the medicine is taken?
                                                                                                        
3. For whom would a dose of two tablespoonfuls be suggested:?
                                                                                                        
4.What is the largest amount of medicine that should be taken by an adult in a four-hour period?
                                                                                                        
5. What should you do if the medicine doesn't work?
                                                                                                        
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填空题

密钥的机密性保护可以通过（）实现。
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