positive: 正常精液的量大概是2-3ml,正常是超过2ml。正常的精子的数量应该是4000万左右。1次射精中精子约4000万,1次射精量2ml左右。男性的精子在睾丸产生的,受下丘脑-垂体-性腺轴控制。内分泌中包含睾酮,睾酮受复杂的神经和内分泌调节,而睾丸里边的精子是在睾酮的刺激下,由精原细胞产生分化形成的,它的产生量每天能达到10-12亿。
negative: 版权声明:本文为博主原创文章,遵循 CC 4.0 BY-SA版权协议,转载请附上原文出处链接和本声明。<br>一、组网需求<br>1、DHCP作为公司汇聚交换机,在上面配置DHCP全局地址池,然后接入交换机根据不同vlan会获取到不同网段IP地址。<br>2、网络拓扑<br>二、操作步骤<br>1、客户端<br>1)创建DHCP服务器组,并为DHCP服务器组添加DHCP服务器对应网段的网关IPsystem-view [Huawei]sysname Client [Client]dhcp server group dhcp1 [Client-dhcp-server-group-dhcp1]dhcp-server 192.168.1.1 [Client-dhcp-server-group-dhcp1]q [Client]dhcp server group dhcp2 [Client-dhcp-server-group-dhcp2]dhcp-server 192.168.2.1 [Client-dhcp-server-group-dhcp2]q<br>2)创建vlan<br>[Client]vlan batch 10 20<br>3)使能全局DHCP功能<br>[Client]dhcp enable<br>4)开启vlanif中继功能并配置接口IP,指定DHCP服务器。<br>[Client]interface Vlanif 10 [Client-Vlanif10]dhcp select relay [Client-Vlanif10]ip address 192.168.1.2 24 [Client-Vlanif10]dhcp relay server-select dhcp1 [Client-Vlanif10]q [Client]interface Vlanif 20 [Client-Vlanif20]dhcp select relay [Client-Vlanif20]ip address 192.168.2.2 24 [Client-Vlanif20]dhcp relay server-select dhcp2 [Client-Vlanif20]q<br>5)配置接口<br>[Client]interface GigabitEthernet 0/0/1 [Clien