问题
单项选择题 A1/A2型题
致泻大肠埃希菌血清学试验的证实试验是()
A.玻片凝集试验
B.试管凝集试验
C.双管凝集试验
D.多管凝集试验
E.单管凝集试验
答案
参考答案:E
致泻大肠埃希菌血清学试验的证实试验是()
A.玻片凝集试验
B.试管凝集试验
C.双管凝集试验
D.多管凝集试验
E.单管凝集试验
参考答案:E
Elizabeth lived with her six children in a small house. One winter, there was a big flood(洪水) ,and quite a few houses were washed away, but Elizabeth’s house was high enough to escape it. Elizabeth helped one of the families which had lost everything. She shared her home until the family could build a new house. Elizabeth’s friends could not understand her since she already had so many children to take care. "Well," Elizabeth explained to her friends, at the end of World War II, there was a poor woman in a town in England .Her husband had been killed in the war and she had a lot of children, just like me now .The day before Christmas, this woman said to her children, “We won’t be able to have much for Christmas. I’m going to get just one present for us all .Now I’ll go and get it. She came back with a little girl who had no parents .Here’s our present, she said to her own children. The children were more than excited to get such a present. They welcomed the little girl warmly, and she grow up as their sister. I was that Christmas present."
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