Scientists are not thinking of using mussels to produce the super glue mainly because of
A. their concern about the extinction of the species
B. their concern about the cost of collecting mussels
C. the possible mass-production of the super glue
D. the world's limited demand for the super glue
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The best title for the passage can be ______
A. Writing Scientific Papers: Publish or Perish
B. Collaboration and Responsibility in Writing Scientific Papers
C. Advantages and Disadvantages of Team Science
D. Multiple Authors, Multiple Problems
People with a scientific attitude ______
A. are ready to accept the pronouncements of others
B. tend to reach conclusions with certainty
C. are aware that others are likely to make hasty judgments
D. seek truth through observation, experimentation and reasoning
The three branches of government--the legislative, the executive, and the______ --restrain
A. lawful
B. just
C. judicial
D. legal
听力原文：W: I can't believe my roommate still hasn't washed the dishes. There is not a clean dish left for us to use.
M: Don't worry about it. Paper plates are fine.
Q: What does the man mean？
(17)
A. Paper plates are cheaper than dishes.
B. Dishes break more easily than paper plates.
C. There is no need to wash any dishes now.
D. The woman's roommate will return soon.
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