皮皮学，免费搜题
登录
搜题
【单选题】
OSPF协议中,当一个稳定的网络中加入一台优先级比原DR和BDR还要,该路由器会( )A.
立刻成为DR
B.
立刻成为BDR
C.
等DR失效时，立刻成为DR
D.
成为DR Other
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】听力原文：W: Air pollution is one of the most serious problems in the world. Polluted air can make us sick or even kill us. Why isn't more done to stop it? M: Everyone wants to stop it, but it is a difficu...
A.
Most people don't think it is a serious problem.
B.
Most of our pollution is caused by things people need.
C.
The government has not spent enough money to stop it.
D.
The seriousness of pollution has not been realized by the government.
【单选题】They regard ______ as their duty to provide the best service for their customers.
A.
this
B.
what
C.
it
D.
that
【简答题】求 0.05 mol∙dm -3 KHC 2 O 4 溶液的 pH ,如果加入等体积的 0.1 mol∙dm -3 K 2 C 2 O 4 溶液后,则溶液的 pH 又为多少 ? ( K a1 ө = 5.9 × 10 -2 , K a2 ө = 6.4 × 10 -5 )
【简答题】开户单位支付个人劳务报酬，可以支付现金。
相关题目：