问题
单项选择题
结核病的细胞免疫反应中起主要作用的细胞为
A．NK细胞
B．T细胞
C．嗜中性粒细胞
D．巨噬细胞
E．B细胞
答案
参考答案：B
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结核病的细胞免疫反应中起主要作用的细胞为
A．NK细胞
B．T细胞
C．嗜中性粒细胞
D．巨噬细胞
E．B细胞
参考答案：B
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| While I was waiting to enter university, I saw in a newspaper a teaching job wanted at a school about ten miles from where I___1___. Being very short of money and wanting to___2___ something useful I applied (申请). Fearing as I did so, that without a degree and with no ___3___ of teaching my chances of getting the job were ___4___ However, three days later, a letter ___5___, calling me to Croydon for a___6___with the headmaster. It proved to be a___7___journey: a train to Croydon station, a ten-minute bus ride and then a walk of at ___8___ a quarter of a mile. As a result I arrived there, feeling___9___hot to be nervous. It was clearly the ___10___ himself that opened the door. He was___11___and round. “The school,” he said, “is made up of one___12___of twenty-four boys between seven and thirteen.” I should have to___13___all the subjects except art, which he taught himself. I should have to___14___the class into three groups and teach them in turn at three different___15___, and I was disappointed at the thought of teaching maths-a___16___at which I wasn’t very good at school. Worse perhaps was the idea of___17___to teach them on Saturday afternoon because most of my friends would be___18___ themselves at that time. Before I had time to ask about my salary (薪水), he got up to his___19___. “Now,” he said, “you’d better meet my wife. She is the one who really 20 this school.” | ||||
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高度足够，轴壁聚合度较小，具备良好的固位形