The author's attitude toward Saccheri's study can be best described as one of
A. qualified approval
B. tempered suspicion
C. mild disdain
D. enthusiasm and optimism
E. neutrality and disinterest
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As the world has moved into a scientific age, the origin of herbal medicine in many countries remains shrouded in mystery and often sounds fantastic to those modern science.
A. trained in
B. averse to
C. unprepared for
D. beholden to
E. neutral toward
We now know that humans have evolved not to subsist on a single, Paleolithic diet but to be______eaters, an insight that has important implications for the current debate over what people today should eat in order to be healthy.
A. flexible
B. carnivorous
C. gregarious
D. predictable
E. salubrious
If the phenomenon "extinction risk increased significantly with decreasing heterozygosity" (lines 9-10) agrees with the proposed effect on extinction, the passage assumes
A. heterozygosity is an indicator of increasing inbreeding depression in assimilated metapopulations
B. heterozygosity is unrelated to the degree of inbreeding depression in assimilated metapopulations
C. heterozygosity is an indicator of decreasing inbreeding depression in isolated metapopulations
D. heterozygosity is an indicator of increasing inbreeding depression in isolated metapopulations
E. heterozygosity is an indicator of decreasing inbreeding depression in assimilated metapopulations
按《UCP500》的解释，若信用证条款中未明确规定是否“允许分批装运”、“允许转运”，则应视为( )。
A. 可允许分批装运，但不允许转运
B. 可允许分批装运和转运
C. 可允许转运，但不允许分批装运
D. 不允许分批装运和转运
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