【简答题】Part II: chose the proper words that could describe the characteristics of the deep culture. A.a small part of the culture B.a large part of the culture C.invisible D . concealed E.observable ...
【单选题】听力原文:M: Do you mind if I take notes? W: Not at all. M: Thank you. I see that you have been an assistant manager for four years, which means that you were made an assistant manager at a relatively youn...
【多选题】What are the characteristics of ideal ytical technique for measuring trace elements in environmental samples?
A.
The choice of ytical method for trace element measurements of environmental or biological samples depends not only on availability but on a variety of factors: a. multi or single element determination; b. required detection or determination limits; c. required type of sample preparation;
B.
d. possible matrix or interference effects; e. total dissolved solids content; f. liquid or solids ysis; g. required levels of precision and accuracy;
C.
The ideal ytical technique for measuring trace elements in environm e ntal samples must offer: (a) very low detection limits, (b) a wide linear dynamic range, (c) interference–free data,
D.
(d) qualitative , semi-quantitative and quantitative ysis, (e) possible simultaneous multielement capability, (f) sample preparation, (g) high throughput and low cost per determination.
【单选题】听力原文:M: Do you rent the room by the week? You see, I'm not sure whether I'll stay for a whole month. W: Yes, the rates are higher though. It's $50.00 a week, but only $160.00 a month. Q: How much will...
【简答题】A. Given B. hyperlinks C. repository D. immediate E. query F. relevance G. disguised H. pervasive I. indexing J. yield K. submitted L. retrieves M. associated N. derives O. interactive P. medium The f...
【简答题】Many typically 'American' characteristics are a result of value. 【M1】______ There is a remarkable ethic diversity in the US. Among its population 【M2】______ of 300 million, 73% is White, 12% African A...