_______ (49)A. Tegmark fears he may hold the reco
_______ (49)
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：E
此题出现在第六段中。空格处前面的意思是：把以前出版的文章汇集在一起，必然会舍弃一些学科，省去一些解释等。选项E的意思是：这些东西可以放到术语表中。选项E中的these实际上指前面提到的那些被舍弃或省去的东西。把选项E放到空格处意思通顺。在做这类题目时，一定要通过上下文的意思和一些语法关系，如解释、指代、重复等来解决。