_______ (47)A. Tegmark fears he may hold the reco
_______ (47)
A. Tegmark fears he may hold the record for the longest time taken to read one book.
B. In a more positive vein,this is a wonderful collection of essays to dip in and out of if you already have a good overview（概述）of current cosmic understanding.
C. Levy is an active astronomer and an accomplished writer,so you’d expect him to provide a broad and accurate picture of our current understanding of the cosmos.
D. Scientific American has attempted to cater to this need by bringing together essays that have appeared in the magazine.
E. To some extent, these could have been plugged with a glossary（词表）of terms.
F. Also included are contributions on the world of subatomic particles,the origin of life on the Earth and the possibility of its existence elsewhere.
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答案：C
此题出现在第三段中间。空格处前面提到本书是由David Levy选编的，按照正常的叙述，文章接下来应该介绍David Levy为何人，根据这个线索，我们发现选项C讲的是Levy是一位活跃的天文学家等。毫无疑问，选项C为正确答案。