Which two statements are true about the command ip route 172.16.3.0 255.255.255.0 192.168.2.4?()
A. It establishes a static route to the 172.16.3.0 network.
B. It establishes a static route to the 192.168.2.0 network.
C. It configures the router to send any traffic for an unknown destination to the 172.16.3.0 network.
D. It configures the router to send any traffic for an unknown destination out the interface with the address 192.168.2.4.
E. It uses the default administrative distance.
F. It is a route that would be used last if other routes to the same destination exist.
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中央式通风方式通风线路长、阻力大、漏风大、但管理工作简单、易于全矿反风。
A. 正确
B. 错误
IGK、IGL均由______、______、______三个不连续的基因簇组成,每个基因簇又含有______。
真菌进行有性生殖时,经过质配,核配和减数分裂形成的有性孢子是()和()。
组合分配系统是用一套二氧化碳储存装置保护()防护区或保护对象的灭火系统。
A. 两个或两个以上
B. 两个
C. 一个或一个以上
D. 一个以上