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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According to the passage, in the Cepheid variable method all of the following have a significant role in the calculation of the distance of a galaxy EXCEPT
A. (A) The intrinsic luminosity of a Cepheid
B. (B) The comparative luminosity of ordinary stars
C. (C) The observed brightness of the Cepheid
D. (D) The data suggesting the expansion of the universe
E. (E) The correction of the period-luminosity relation for the star being observed
英国海关要求发货人在货物离港前需填写AMS表,并由承运人或货运代理人中报。( )
A. 对
B. 错