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IgE对哪些细胞具有亲嗜性
  • A、
    嗜酸性粒细胞
  • B、
    嗜碱性粒细胞
  • C、
    肥大细胞
  • D、
    B细胞
  • E、
    单核细胞
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  • 最早发起五四运动的高等学府是A、南开大学B、北京大学C、清华大学D、中国人民大学中国近现代史纲要
  • 33、Until a few years ago, vans were commercial vehicles used mostly by business firms as delivery trucks. Today, the van has become a palace on wheels. It is a place where the owner of a van, called vanner, can relax, visit with good friends, eat, drink, sleep and even watch television. A van may often look like an art museum on wheels. The exterior of vans is a visual feast of colors and styles. Many vans have paintings of various kinds on the sides. Each van is decorated and finished to reflect the personality of its owner. The most luxurious(豪华的)van has TV, a refrigerator and a sink, etc. Some even have paintings on the walls. Van is very popular with young married couples with small children, and with young people, such as high school and university students. The latter frequently use their vans for traveling parties, often going from place to place, or city to city, gathering friends along the way. In 1966 there were about 190,000 vans registered in US. By 1976 sales of vans were more than 2 million a year. What is the reason for van boom(快速发展)? Freedom and chance to be with other people are some of most often expressed reasons.统考英语阅读理解
  • 一般转速下,转速的高低对轴承类型的选择影响不大,但是在高转速时对轴承类型选择有显著影响。正确错误机械设计
  • 属于点景的是( ) (A)石刻(B)雕像(C)喷泉(D)园灯[参考答案:A]  分值:5得分: 分 系统自动批改于2020年12月25日 22点14分 风景园林设计
  • [翻译题] invade商务英语
  • 1、A public house which was recently bought by Mr. James is up for sale. He is going to sell it because it is haunted (闹鬼的). He told me that he could not go to sleep one night because he heard a strange noise coming from the bar. The next morning, he found that the doors had been blocked by chairs and the furniture had been moved. Though Mr. James had turned the lights off before he went to bed, they were on in the morning. He also said that he had found five empty whisky bottles which the ghost (鬼) must have drunk the night before. When I suggested that some villagers must have come in for a free drink, he shook his head. The villagers have told him that they will not accept it even if he gives it away.统考英语阅读理解