问题
多项选择题
下列有关新生儿的免疫特点中，哪些不正确
A．仅IgG能通过胎盘，胎龄越小，IgG水平越低
B．因缺乏IgM，易发生呼吸道、消化道感染
C．因缺乏IgM，对革兰阴性杆菌易感
D．新生儿T细胞对特异性外来抗原的应答良好
E．巨噬细胞与自然杀伤细胞功能差
答案
参考答案：B, D
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下列有关新生儿的免疫特点中，哪些不正确
A．仅IgG能通过胎盘，胎龄越小，IgG水平越低
B．因缺乏IgM，易发生呼吸道、消化道感染
C．因缺乏IgM，对革兰阴性杆菌易感
D．新生儿T细胞对特异性外来抗原的应答良好
E．巨噬细胞与自然杀伤细胞功能差
参考答案：B, D
When I was about 12 years old， I really wanted a new bike！ I __36__ my parents my birthday wish，but I knew there was little hope because my family could __37__ have that money. On my birthday my parents told me they had my __38__ outside in the back yard. At once I __39__ out to the yard. There was my bike， __40__ it wasn’t the bike that I thought it would be. This one was pink， old and worn with age. It was so __41__！ I thought I __42__ my parents’ feelings because I could see the disappointment __43__ their faces and I was sure they could see it on mine. I __44__ the old bike and rode it， feeling __45__ that I had made my parents feel this way. So I put on a smile， rode as fast as I could and didn’t __46__. As time went by， I began to understand my parents gave me __47__ much more than just a rusty（生锈的）old bike. They gave me a life lesson about __48__. When you give something out of love， it doesn’t matter what it is in fact. What matters is the love that is in it. I like to remember this __49__ because giving a gift is not about money. It’s about how much love you can feel from it. Do remember， a gift that __50__ two dollars isn’t any less valuable（有价值的）than one that costs one hundred dollars， or even more.
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