下图所示圆锥被正垂面P所截，其截交线的形状是： -题库考试答案搜索网

下图所示圆锥被正垂面P所截，其截交线的形状是：

单选题

2021-07-17 23:36

A、三角形
B、椭圆与直线
C、双曲线与直线
D、抛物线与直线

查看答案

正确答案

B

试题解析

标签：工程制图 2020级第一学期期末考试土木工程高起本 2020年第二学期期末考试工程造价专升本工程制图Ⅱ 期末考试 Z工程制图建筑工程技术高起专建筑环境与能源应用工程房地产开发与管理机械制造与自动化汽车服务工程焊接技术与自动化环境工程给排水工程技术给排水科学与工程道路桥梁工程技术

感兴趣题目

（）shall be liable for loss of and damage to the Vessel and／or goods arising or resulting from inaccuracies in stating the description，quantity，weight，measurement or contents.

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

The （） is used for hauling in or letting out the wires or ropes.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

（）are liable to be stoten, pilfered or may damaged due to improper handing or stowage.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

Excel 2003中，需要对学生成绩表.xls文件中的每学期的成绩表分别重新命名为“第一学期”、“第二学期”、“第三学期”、“第四学期”，可以使用的方法是（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

相关题目: boost的意思是:help or encourage to increase or improve; eloquent的意思是:fluent or persuasive in speaking or writing; A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.; 一般来说，每学期进行的期末考试属于（）。; Mainly east 3 or 4 partly cloudy to overcast occasional rain（）slowly south moderate or good.; “考试计划”显示本学期期末的（）。; 每个学期末都会进行年级期末考试，属于教学评价中的（）。; 阅读下面材料，回答问题。某中学，新生开学时没有编快慢班，但经过第一学期期末考试后，第二学期编了快慢班。问题：你对该中学的做法有何看法？; （）any case or suspected case of quarantinable disease，or any case of eruptive disease or any death be discovered，the local quarantine officer must be notified immediately．; Should any case or suspected case of quarantinable disease，or any case of eruptive disease or any death be discovered，the local Quarantine Officer must be（）immediately.; Masters are（）solely responsible for all damages or accidents of whatever kind resulting from the navigating or handling of their vessels by day or by night.; 系统中雷达状态包括Unknown、Operational（or ON）、Failed（or OFF）、Detached。; The carrier is liable for loss of or damage to the goods or delay in delivery caused by fire，（）the claimant proves that the fire arose from fault or neglect on the part of the carrier，his servants or agents.; Shutdown price（or point，or rule）停业价格（或停业点、停业原则）; 翻译：With Average or With Particular Average（WA or WPA）（）; 从第一学期（）开始，学生自主选择确定第二学期以后的修读课程。; 一般来说，每学期进行的期末考试属于（　　）。; 一般来说，每学期进行的期末考试属于（）。; 一般来说，每个学期进行的期末考试属于（　　）。; 我们每学期进行的期中考试、期末考试是水平测试（Proficiency Test）。

广告位招租WX:84302438

题库考试答案搜索网

免费的网站请分享给朋友吧