皮皮学，免费搜题
登录
搜题
【单选题】
个人不良信用信息的保留期限最长不得超过几年?( )A.
7年
B.
6年
C.
5年
D.
4年
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】We should ______ when using serf-talk.
A.
keep positive serf-talk as much as possible
B.
avoid negative serf-talk whenever possible
C.
keep a balance between positive and negative serf-talk
D.
remind ourselves of the advantages of all serf-talk
【简答题】什么叫薄层色谱法?
【简答题】Passage 2: New words: self-esteem n. 自尊(心) Listen to a short passage three times. When the passage is read for the first time, listen for its general idea. When the passage is read for the second ti...
【简答题】To make yourself _________, remembered and likely to be hired, you need a good resume to present who you are and what your strengths are. All the items in the resume should be organized logically, and...
【判断题】In all cases, passive voice is necessary, especially when we discuss something negative such as claim, we should avoid blaming the other party directly or when we do not know who is the agent of actio...
A.
正确
B.
错误
【判断题】After the counterpart's quotation, we should avoid by all means bothering, listen attentively to, question carefully to clarify, sum-up and retell to make sure that what we heard and understand is exa...
A.
正确
B.
错误
【单选题】乙醇提取保健食品中黄酮类化合物,得到的上清液中加入聚酰胺粉,然后挥去乙醇,再装入层析柱进行纯化,该方法叫什么?
A.
基质固相分散萃取技术（MSPDE）
B.
固相萃取技术（SPE）
C.
凝胶渗透色谱法（GPC）
D.
薄层预展法（TLC）
相关题目：
参考解析：
知识点：
题目纠错 0
发布
