听力原文：Why did the Johns Hopkins astronomers make a mistake？
(29)
A. Because the American Astronomical Society offered wrong data.
Because they included the wrong star systems in their observation.
C. Because they were misled by newspapers and television reports.
D. Because there is a mistake in the computer software they used.
The fact that the management is trying to reach agreement_____five separate unions has led
A. over
B. upon
C. in
D. with
The meaning of the word"consensus"in Paragraph 3 is closest to_____.
A. requirement
B. content
C. agreement
D. distinction
As soon as the author read the lost notebooks, he____,.
A. reported the fact
B. found it valueless
C. registered the inventions
D. was very excited
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