皮皮学，免费搜题
登录
搜题
【多选题】
下列属于教育行政法规的有（ ）
A.
《中华人民共和国义务教育实施细则》
B.
《中华人民共和国学位条例暂行实施办法》
C.
《中华人民共和国教师法》
D.
《中华人民共和国义务教育法》
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
【单选题】Questions 1 to 5 are based on the following passage Interest in pursuing international careers has soared in recent years. enhanced by chronic ( 长久的 ) personnel shortages that are causing companies to...
A.
they find foreign employees are usually more talented
B.
they need original ideas from employees hired overseas
C.
they want to expand their business beyond home borders
D.
they have difficulty finding qualified personnel at home
查看完整题目与答案
【单选题】You are the network administrator for The network consists of a single Active Directory domain named Site License Logging is enabled in the domain. Administrators report that they cannot manage Client...
A.
Open Licensing, click the Server Browser tab, and expand your domain. Inspect the properties of each server.
B.
Open Active Directory Sites and Services, open the properties for the site name. Inspect the contents of the Location tab.
C.
Open the Active Directory Users and Computers, click your domain name, click Action, and select Operations Masters. Inspect the contents of the Infrastructure tab.
D.
Open Active Directory Sites and Services, and click your site name. Inspect the properties of the Licensing Site Settings.
查看完整题目与答案
【判断题】梯度洗脱是在分离过程中通过逐渐改变流动相的组成增加样品中各组分分离能力的一种方法。( )
A.
正确
B.
错误
查看完整题目与答案
【简答题】请听2018年12月四级真题第二套,并完成以下题目。 Questions 8 to 11 are based on the conversation you have just heard . 8. A ) They were skilled carpenters themselves . B ) It didn't need much capital to start with . C ) Wo...
查看完整题目与答案
【简答题】Question 19. What advice does the author give to people engaged in a fierce debate? ==== Passage 4 ==== It's nice to have people of like mind around. Agreeable people boost your confidence and allow y...
查看完整题目与答案
【多选题】When firms need to expand their operations, they will increase demand for .
A.
supplies
B.
construction services
C.
materials
查看完整题目与答案
【单选题】在液相色谱中,梯度洗脱的作用是( )。
A.
提高分离效果,缩短分析时间
B.
缩短出峰时间
C.
沿长出峰时间
D.
减少进样量
查看完整题目与答案
【多选题】无铅焊锡的特点是?
A.
无铅焊料的熔点高
B.
可焊性不高
C.
无铅焊接发生焊接缺陷的几率较高，易发生桥接、不容湿、反熔湿以及焊料结球等缺陷
D.
无铅焊料的成本高
查看完整题目与答案
【单选题】在液相色谱中,梯度洗脱的作用是( )。
A.
使出峰时间基本一致
B.
缩短出峰时间
C.
沿长出峰时间
D.
减少进样量
查看完整题目与答案
【单选题】梯度洗脱
A.
是指在一个分析周期内,按一定程序不断改变展开剂的浓度配比或pH等。
B.
是指在一个分析周期内,按一定程序不断改变气体的浓度配比或pH等。
C.
是指在一个分析周期内,按一定程序不断改变固定相的浓度配比或pH等。
D.
是指在一个分析周期内,按一定程序不断改变流动相的浓度配比或pH等。
E.
是指在一个分析周期内,按一定程序不断改变样品的浓度配比或pH等。
查看完整题目与答案
相关题目：
【单选题】Questions 1 to 5 are based on the following passage Interest in pursuing international careers has soared in recent years. enhanced by chronic ( 长久的 ) personnel shortages that are causing companies to...
A.
they find foreign employees are usually more talented
B.
they need original ideas from employees hired overseas
C.
they want to expand their business beyond home borders
D.
they have difficulty finding qualified personnel at home
查看完整题目与答案
【单选题】You are the network administrator for The network consists of a single Active Directory domain named Site License Logging is enabled in the domain. Administrators report that they cannot manage Client...
A.
Open Licensing, click the Server Browser tab, and expand your domain. Inspect the properties of each server.
B.
Open Active Directory Sites and Services, open the properties for the site name. Inspect the contents of the Location tab.
C.
Open the Active Directory Users and Computers, click your domain name, click Action, and select Operations Masters. Inspect the contents of the Infrastructure tab.
D.
Open Active Directory Sites and Services, and click your site name. Inspect the properties of the Licensing Site Settings.
查看完整题目与答案
【判断题】梯度洗脱是在分离过程中通过逐渐改变流动相的组成增加样品中各组分分离能力的一种方法。( )
A.
正确
B.
错误
查看完整题目与答案
【简答题】请听2018年12月四级真题第二套,并完成以下题目。 Questions 8 to 11 are based on the conversation you have just heard . 8. A ) They were skilled carpenters themselves . B ) It didn't need much capital to start with . C ) Wo...
查看完整题目与答案
【简答题】Question 19. What advice does the author give to people engaged in a fierce debate? ==== Passage 4 ==== It's nice to have people of like mind around. Agreeable people boost your confidence and allow y...
查看完整题目与答案
【多选题】When firms need to expand their operations, they will increase demand for .
A.
supplies
B.
construction services
C.
materials
查看完整题目与答案
【单选题】在液相色谱中,梯度洗脱的作用是( )。
A.
提高分离效果,缩短分析时间
B.
缩短出峰时间
C.
沿长出峰时间
D.
减少进样量
查看完整题目与答案
【多选题】无铅焊锡的特点是?
A.
无铅焊料的熔点高
B.
可焊性不高
C.
无铅焊接发生焊接缺陷的几率较高，易发生桥接、不容湿、反熔湿以及焊料结球等缺陷
D.
无铅焊料的成本高
查看完整题目与答案
【单选题】在液相色谱中,梯度洗脱的作用是( )。
A.
使出峰时间基本一致
B.
缩短出峰时间
C.
沿长出峰时间
D.
减少进样量
查看完整题目与答案
【单选题】梯度洗脱
A.
是指在一个分析周期内,按一定程序不断改变展开剂的浓度配比或pH等。
B.
是指在一个分析周期内,按一定程序不断改变气体的浓度配比或pH等。
C.
是指在一个分析周期内,按一定程序不断改变固定相的浓度配比或pH等。
D.
是指在一个分析周期内,按一定程序不断改变流动相的浓度配比或pH等。
E.
是指在一个分析周期内,按一定程序不断改变样品的浓度配比或pH等。
查看完整题目与答案