皮皮学，免费搜题
登录
搜题
【多选题】
PLC安装接地时，需要注意（）。A.
最好用PLC接地专用线
B.
接地线最好使用截面为8平方毫米铜线
C.
不得使用动力线作为接地线
D.
接地电阻应小于8Ω
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】某开发项目其现金流量如下表所示,已知基准收益率为10%,其内部收益率为( )。 年份 0 1 2 3 4 5 现金流人(万元) 0 0 300 300 300 300 现金流出(万元) 500 50 50 50 50 50
A.
14.81%
B.
16.60%
C.
19.49%
D.
22.14%
【单选题】How does the professor introduce the lecture topic?
A.
By listing the top producers of maple syrup.
B.
By correcting a common misconception about maple syrup.
C.
By reminding the students of the topic from last class.
D.
By asking the students to define a related term.
【简答题】Translate the following paragraph into Chinese. The American Dream is a national ethos( 精神特质 )of the United States. The term is used in many ways, but it essentially is an idea that suggests that anyo...
【多选题】会议纪要在开头部分要先写明会议的基本情况，它包括（ ）。
A.
会议召开的根据、目的
B.
会议名称、议题、成果
C.
时间、地点、与会范围(人员)
D.
讨论经过和各方面意见
【单选题】What is the discussion mainly about?
A.
Regions that are known for their maple syrup industries.
B.
The production of maple syrup.
C.
The process by which maple trees produce sap.
D.
The history of the maple syrup industry.
【单选题】______ , leaves from certain trees such as the maple turn into bright colours.
A.
During the fall
B.
With the fall
C.
While the fall
D.
Along the fall
相关题目：
参考解析：
知识点：
题目纠错 0
发布
