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【简答题】
A Letter of Consultation 咨询信 Write a letter of consultation of about 100 words based on the following situation: Your roommate Jim has suffered from psychological problems. Worried about him as you are, you dont know how to help him. Now write a letter to a psychological expert, Professor White, to ask for advice. Do not sign your own name at the end of the letter. Use 'Li Ming' instead. Do not write the address.
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举一反三
【简答题】why do we need to write an abstract for our research paper?
【多选题】We write an abstract when ___________.
A.
submitting articles to academic journals
B.
completing and submitting a Ph.D. dissertation or M. thesis
C.
submitting conference papers
D.
selecting which paper to read
【多选题】We write an abstract when ___________.
A.
submitting articles to academic journals
B.
completing and submitting a Ph.D. dissertation or M.A. thesis
C.
submitting conference papers
D.
selecting which paper to read
【单选题】激光器的谐振腔由一面曲率半径为 1m 的凸面镜和曲率半径为 2m 的凹面镜组成,工作物质长 0.5m ,其折射率为 1.52 ,求腔长 L 在什么范围内是稳定腔。
A.
1小于L小于2
B.
0.74小于L小于1.74
C.
1.17小于L小于2.17
【简答题】Please refer to the reference textbook and finish task 2 on page 214 and write an abstract for the text in critical reading on pages 183-188 and hand in the abstract online before we finish chapter 8.
【单选题】When do we need to write an abstract?
A.
When you write a dissertation for a higher degree.
B.
When you submit a research paper for publication.
C.
When your report will be disseminated to an audience.
D.
All of the above.
【单选题】激光器的谐振腔由一面曲率半径为 1m 的凸面镜和曲率半径为 2m 的凹面镜组成,工作物质长 0.5m ,其折射率为 1.52 ,求腔长 L 在什么范围内是稳定腔。
A.
L∈(1, 2)
B.
L∈(0.74, 1.74)
C.
L∈(1.17, 2.17)
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