问题
单项选择题
具有PHA受体的细胞是
A．Mφ细胞
B．T细胞
C．B细胞
D．浆细胞
E．NK细胞
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
具有PHA受体的细胞是
A．Mφ细胞
B．T细胞
C．B细胞
D．浆细胞
E．NK细胞
参考答案：B
Mrs. White was a wealthy lady. She lived 36 in a large comfortable house where her children and grandchildren came to visit her frequently. However, she was 37 . She spent a lot of time thinking about her 38 and about her dead husband. Her children 39 about her and asked Dr. Green to see her. Mrs. Green was an experienced doctor. She knew old people became upset in their ways and didn’t like to 40 what to do. She decided to get to know Mrs. White before she said anything. During the visit, Dr. Green asked Mrs White to give her a 41 of the house. Mrs. White was 42 her house and happily agreed. As they walked from room to room, Dr. Green 43 that there were a lot of violets (紫罗兰) in every window. She asked, “__44 _ do you have so many violets?” Mrs White replied, “ I love these 45 and they 46 so fast that I have more and more. When the tour of the house was over, Dr. Green said, “I have one suggestion to make. Whenever you 47 a friend or a neighbor that is 48 in bed or getting married, give 49 one of your violets.” Mrs White said 50 about the doctor’s advice and for a few months 51 her visit, she didn’t give away any of her violets. Then one day she was invited to the 52 of her neighbor's daughter. She put a ribbon(丝带) on one of her potted plants and took it to the party. Later one of her friends was sick so she took a violet plant and took it to the hospital. 53 she began to give more and more of her potted violets to her neighbors. Over the years she 54 so many that she became known as the “ 55 lady”.
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