[问答题] 中枢免疫器官和外周免疫器官各包括哪些？

单位和个人以获利或减少损失为目的，以自己为交易对象进行不转移证券所有权的自买自卖，以影响证券价格或者证券交易量的行为是：（）。 ["虚假陈述","操纵市场行为","欺诈客户","内幕交易行为"] 简述中国主要民族的分布特点 A network administrator is planning a network installation for a large organization.The design requires 100 separate subnetworks,so the company has acquired a Class B network address.What subnet mask will provide the 100 subnetworks required, if 500 usable host addresses are required per subnet?（） [" 255.255.240.0"," 255.255.248.0"," 255.255.252.0"," 255.255.254.0"," 255.255.255.0"," 255.255.255.192"] 股份公司当年向原股东配售的新股，按票面价值计算的总额，不得超过公司原股本总额的（）。 ["10%","20%","30%","50%"] 下列说法错误的是：（） ["最保守的民族都是笃信宗教的民族","笃信宗教的民族是最保守传统的民族","最传统的民族是思想观念不容易变化的民族","中国人是一个笃信宗教和神的民族"] 中枢免疫器官和外周免疫器官各包括哪些？