皮皮学，免费搜题
登录
搜题
【简答题】
简述最基本的路由原理。
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】What does the phrase “In addition to” in the 4 th paragraph mean?
A.
remember
B.
to be one of the causes or features of something
C.
besides
D.
to be in a particular position
【单选题】Which of the following does not explain the phrase of “多闻阙疑”?
A.
Use you eyes widely but leave out what is doubtful.
B.
Not to make comments on what one does not know.
C.
Whereupon there is something you don’t know, thereupon you keep silent.
D.
In regard to what one does not know, one should try one’s best.
【多选题】DEM的概念是( )。
A.
DEM是区域地表面海拔高程的数字化表达。
B.
DEM是地理空间中地理对象表面海拔高度的数字化表达。
C.
DEM是定义在二维空间上的连续函数。
D.
是对二维地理空间上具有连续变化特征地理现象的模型化表达和过程模拟
【单选题】Why does the author use the phrase 'for next November' (Line 3, Para. 1)?
A.
According to the Old Testament freshwater is available only in November.
B.
Rainfall comes only in winter starting from November.
C.
Running water systems will not be ready until next November.
D.
It is a custom in that region that irrigation to crops is done only in November.
【单选题】下列选项中，不属于闸门和启闭机一般性检查的主要内容的是（）
A.
在闸门启闭过程中，启闭机机体各部分的运转情况
B.
自振频率检测
C.
主电源和备用电源状况
D.
寒冷地区闸门防冻设施情况
【单选题】Which of the following does NOT belong to the woman writers of the 20th century?
A.
Virginia Woolf.
B.
Harriet Beecher Stowe.
C.
Alice Walker.
D.
Toni Morrison.
相关题目：
【单选题】下列选项中，不属于闸门和启闭机一般性检查的主要内容的是（）
A.
在闸门启闭过程中，启闭机机体各部分的运转情况
B.
自振频率检测
C.
主电源和备用电源状况
D.
寒冷地区闸门防冻设施情况