皮皮学,免费搜题
登录
搜题
【多选题】
挥发油的提取方法包括()
A.
水蒸汽蒸馏法
B.
溶剂提取法
C.
冷压法
D.
油脂吸收法
E.
超临界流体萃取法
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
【判断题】中国服装研究设计中心自1987年起也开始发布中国服装流行趋势,所发布的服装作品,其设计均属于展示型设计。()
A.
正确
B.
错误
【判断题】由于数字示波器与模拟示波器之间存在较大的性能差异,如果使用不当,会产生较大的测量误差,从而影响测试任务
A.
正确
B.
错误
【判断题】曲柄的极位夹角θ越小,机构的急回特性系数K也越小,机构的急回特性也越显著。
A.
正确
B.
错误
【简答题】目前大量使用的示波器有两种:模拟示波器和数字示波器。示波器可通过各种各样的视图模式来观察波形,主要有YT、XY两大模式,测量未知信号的电压和周期时采用( )模式,观察李萨如图形时采用( )模式,实验中 李萨如图形如下图所示,对应的频率比fx:fy=( )。
【单选题】“Office politics” (Line 2, Para. 4) is used in the passage to refer to ________.
A.
the code of behavior. for company staff
B.
the political views and beliefs of office workers
C.
the interpersonal relationships within a company
D.
the various qualities required for a successful career
【单选题】The author considers office politics to be ________.
A.
unwelcome at the workplace
B.
bad for interpersonal relationships
C.
indispensable to the development of company culture
D.
an important factor for personal advancement
【单选题】The author considers office politics to be______.
A.
unwelcome at the workplace
B.
bad for interpersonal relationships
C.
an important factor for personal advancement
D.
indispensable to the development of company culture
【单选题】Which one is NOT TRUE according to the article?
A.
Office politics is a fact of life in any organization.
B.
Office politics often circumvent the formal organization chart.
C.
If you don’t participate in the political , you risk not having a say in what happens and allowing people with less experience, skill or knowledge to influence the decisions being made around.
D.
Wise politicking will help you get what you want in the world of work with compromising others in the process.
【判断题】在使用模糊控制器跟踪正弦信号的实验中,跟踪结果可以通过双击虚拟示波器查看。
A.
正确
B.
错误
【判断题】对快速排序来说,初始序列为正序和反序,都是最坏情况。
A.
正确
B.
错误
相关题目: