第5题: [单项选择]淋巴细胞再循环的起点、中途站和归巢的终点是() A. 骨髓 B. 胸腺 C. 中枢免疫器官 D. 外周免疫器官及外周淋巴组织 E. 脾和淋巴结 参考答案:D 答案解析:淋巴细胞在体内依靠归巢受体由住地经淋巴循环及血液循环不断往返于外周免疫器官、二级淋巴组织及全身器官组织。外周免疫器官及外周淋巴组织有大量的淋巴细胞,是淋巴细胞居住、增殖、休整和其他细胞相互作用及信号传
第6题:[判断题]如果用户签约多个业务平台,SCSCF触发第一个业务平台失败,则后续业务平台也将无法正常触发。
If a user has subscribed to several service platforms, when the SCSCF fails to trigger the first service platform, the following service platforms cannot be triggered normally. A.正确 B.错误 参考答案:B
第7题: [单项选择]When was Apple Computer foundedWhen was Apple Computer founded A. In1977 B. In1972 C. In 1976 参考答案:A 答案解析:[解析] 23-30 Man: Have you ever heard of these companies: Apple Computer, Atari, and the Federal Ex