, we believe that its recommendations can nevertheless be of substantial assistance to those who use this book on the numerous occasions when they will be called upon to present their ideas in person before a small group or a large audience
第1题
— recognizing the potential contribution of article writing to the career of the writer and the value of the article to science and technology.
第2题
, however, as to be virtually, if not actually, infinite.
第3题
from a single point in the subject to focus on a single point in the image, as a consequence of their passing through a series of transparent (透明的) elements with precisely curved surfaces.
第4题
after you fall into slumber, your brain activity level will increase again slightly。
第5题
A) which B) on which C) in which D) whenever
第6题
A) any other boy in the class
B) any boy in the class
C) all boys in the class
D) you and me as well as the class
第7题
.
A) since B) when C) until D) before
第8题
.
A) Compared with B) Compared C) Comparing with D) Comparing
第9题
.
A) has destroyed their hut B) to destroy their hut
C) having destroyed their hut D) being destroyed
第10题
.
A) Hardly had he arrived B) Hardly he had arrived
C) No sooner did he arrive D) No sooner arrived he
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