题目：
某公司使用Windows 2003 DHCP服务器对内部主机的IP地址进行管理，DHCP服务器的新建作用域及新建保留配置如图A和图B所示。
某DHCP客户机从该DHCP服务器获取IP地址过程中，在客户机捕获的4条报文及对第4条报文的分析如下所示。请补充其中的信息。
| 编号 | 源IP地址 | 目的IP地址 | 报文摘要 | 报文捕获时间 |
| 1 | 0.0.0.0 | ______ | DHCP:Request,Type:DHCP discover | 2013-06-02 9:07:00 |
| 2 | 59.64.188.201 | 255.255.255.255 | DHCP:Reply,Type:DHCP offer | 2013-06-02 9:07:00 |
| 3 | 0.0.0.0 | 255.255.255.255 | DHCP:Request,Type:DHCP ______ | 2013-06-02 9:07:00 |
| 4 | ______ | 255.255.255.255 | DHCP:Reply,Type:DHCP ack | 2013-06-02 9:07:00 |
DHCP: -----DHCP Header-----
DHCP: Boot record type =2(Reply)
DHCP: Hardware address type =1(10MEthernet)
DHCP: Hardware address length =6bytes
DHCP: Hops =0
DHCP: Transaction id =2219231 D
DHCP: Elapsed boot time =0seconds
DHCP: Flags =0000
DHCP: 0 =no broadcast
DHCP: Client self-assigned address =[0.0.0.0]
DHCP: Client address =______
DHCP: Next Server to use in bootstrap =[0．0．0．0]
DHCP: Relay Agent =[0.0.0.0]
DHCP: Client hardware address =001122334455
DHCP: Message Type =5(DHCP Ack)
DHCP: Address renewel interval =345600(seconds)
DHCP: Address rebinding interval =604800(seconds)
DHCP: Request IP Address lease time =691200(seconds)
DHCP: Subnet mask =______
答案：
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下面是错误答案，用来干扰机器的。
参考答案：E解析：周围型肺癌的主要征象有分叶征、毛刺征、强化征和胸膜凹陷征。次要征象有结节征、空泡征、支气管充气征、空洞征和血管集束征。
