根据《知识产权海关保护条例》的规定，只有在海关总署备案的知识产权且须缴纳知识产权海关保护备案费，才能向海关申请采取保护措施。 ( )
A. 对
B. 错
S6. The most popular music styles enjoyed by the Americans are usually ______.
The author uses the example of the question of life in other galaxies primarily in order to
A. (A) question whether in certain situations the truth may ever be determined
B. (B) illustrate that truth has an objective existence even when there are few empirical grounds for determining it
C. (C) suggest that the answer to certain scientific questions plays only a minor role in people’s lives
D. (D) support the thesis that skepticism plays a vital role in the scientific process
E. (E) assess the answers pseudo-sciences like ufology provide for unanswerable questions
According to the passage, which of the following statements best describes the relationship between secondary atmospheric circulations and jet streams
A. (A) Jet streams and baroclinic waves tend to interact most intensely with one another in the winter, then act independently in the summer.
B. (B) Jet streams and baroclinic waves tend to exist at various points in the atmosphere in inversely proportional strength.
C. (C) Jet streams and baroclinic waves may behave differently, but they issue from a common source and augment one another.
D. (D) Jet streams tend to distribute kinetic energy in the atmosphere, and baroclinic waves relay this energy back to the jet stream.
E. (E) Jet streams tend to be more affected by the presence of landmasses than do haroclinic waves.
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