Staff Profile: Dr. Green Joseph Green, professor of chemical engineering, is an expert on interfacial processes, particularly on

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问题 Staff Profile: Dr. Green
Joseph Green, professor of chemical engineering, is an expert on interfacial processes, particularly on the development and application of x-ray scattering techniques for on-site studies of mineral-fluid interfaces.
Green earned bachelor’s and master’s degrees, as well as his 1960 Ph.D. in chemical engineering, at the University of Indiana. After four years at the Vivinex Corporation, he joined the faculty of Haverton University in 1963. He left Haverton in 1982 to become senior scientific advisor at Petro Energy Corporate Research Labs, and joined Staunton University’s Chemical Engineering Department as professor in 1987.
Green was elected to the U.S. Engineering Council in 1990.
                          United Chemical Laboratories
                             1000 Corporate Drive
                               Lacy, NM 82144
                               February 10, 20—
Joseph Green, Ph.D.
Chemical Engineering Department
College of Chemistry
Staunton University
Menlo Park, CA 94025
Dear Professor Green,
In light of your renowned research and your contributions in the area of mineral-fluid interfaces, we would like to formally invite you to serve as an Invited Speaker at the upcoming Interfacial Process Symposium, to be held at United Chemical Laboratories, in Lacy, N.M., on May 15.
We hope your lecture will include a discussion of trends and current developments in X-ray scattering technology. We will provide roundtrip airfare, hotel accommodation, roundtrip airport transportation, as well as an honorarium of US $800.
If you are willing to accept our offer, we would appreciate you contacting us before April 1. I also will need your up-to-date curriculum vitae, and a brief abstract of our talk for inclusion in the conference proceedings. Please let us know if you will need to use a computer, overhead projector, or other display technology. We will be happy to arrange for copying any handouts you may have.
Your contribution to this symposium would be of enormous benefit to all the participants.
Please do not hesitate to contact me if you have any concerns and/or suggestions.
Yours sincerely,
Bruce Nagy, Ph.D.
Director of Corporate Research
United Chemical Laboratories
What does Bruce Nagy ask Dr. Green to do?

选项 A、Provide a copy of his lecture notes
B、Respond before the beginning of April
C、Give a demonstration of his latest invention
D、Leave time open for questions from the audience

答案B

解析 信件第三段第一句话If you are willing to accept our offer,we would appreciate you contacting us before April 1.说明对方若要接受提议希望在4月1日前与之联系。因此将表达方式contacting us before April 1改换为Respond before the beginning of April的选项(B)是正确答案。
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