A、保护零线B、保护地线C、工作零线D、相线TN－S配电系统中，N线表示()。……

单项选择题A.增大B.减小C.不变D.无法确定

单项选择题在各式各样的关于人生目的的思想中，高尚的人生目的总是与奋斗、奉献联系在一起。

单项选择题A.2×0.787 0.0592B.0.787 0.0592C.0.0592×0.787 2D.0.0592 0.787

单项选择题筹资者能否通过众筹平台发起股权众筹项目，取决于()。

单项选择题A.向正反应方向移动B.向逆反应方向移动C.没有变化D.不能判断

单项选择题若一棵二叉树具有10个度为2的结点，5个度为1的结点，则度为0的结点个数为()。

不定项选择机务段担当的交路数多、交路长，则对减少提铁路建设投资和铁路运输费用以及提高机车运用效率是非常有益的。

单项选择题our company has a main office and two branch offices. Domain controllers in the main office host an active directory-integrated zonE.The DNS servers in the branch offices host a secondary for the zonE.Each branch office has an application server. Users access the application server by using its fully qualified domain namE.you need to ensure that users in the branch office can access their local application server even if the WAN links are down for three days. What should you do?（）A.Increase the expires after setting to 4 days on the start of authority (SOA) record for the zonE.B.Increase the refresh interval setting 0 4 days on the start of authority (SOA) record for the zonE.C.Configure the zone aging scavenging properties dialog box to enable scavenge state resource records, and set the refresh setting to 4 days.D.Configure the zone aging scavenging properties dialog box to enable scavenge state resource records, and set NO-refresh interval setting to 4 days.

多项选择题日式风格，算是众多装修风格中的“黑暗系列”风格，因其主要色调大都以灰、白为主，大多给人的感觉是（）。 A. 沉闷 B. 压抑 C. 极简 D. 活泼

单项选择题A.B.C.D.