【简答题】You speak, write a letter, make a telephone. Your words carry a message. People communicate (交际)with words. Do you think you can communicate without words? A smile on your face shows you are happy or ...
【单选题】某试样中Al含量平均值的置信区间为27.78%±0.1%(置信度为90%),对此结果应理解为( )
A.
在 90% 的置信度下,试样中 Al 的含量在 27.68% ~ 27.88% 范围内
D.
有 90% 的把握试样中 Al 的含量为 27.68%
【单选题】This is the dictionary ______ I depend a lot whenever I have problems with new words.
【单选题】某试样中NaCl含量的平均值的置信区间为97%±4%(置信度为95%),说明
C.
在95%的置信度下,试样中NaCI的含量在93%-101%
E.
在95%的置信度下,试样中NaCl的含量为95%
【单选题】What can be inferred from the words of Robson Walton and Lee Scott?
A.
They feel content with their progress.
B.
They are optimistic about their development.
C.
They plan to expand their business.
D.
They are worried about their future.
【简答题】阅读理解。 All of us communicate with one another non-verbally, as well as with words. We gesture with eyebrows or a hand, meet someone else's eyes and look away, shift positions in a chair. These actions ...
【简答题】Describe each of the following pictures with one (or two) word(s) from "Wit (Excerpt 2 new words)".
【单选题】A good advertisement often uses words ________ people attach positive meanings.
【简答题】Matche the words with their explanations.