In the second paragraph, the author discusses______.
A. the overall economic picture of the publishing industry
B. the paradoxical situation faced by scientific journals
C. the different outlooks of newspapers and scientific journals
D. the favorable economic situation for scientific publishers
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The last paragraph implies that mitochondrial transplantation______.
A. is controversial but worth pursuing
B. is technically feasible but morally unacceptable
C. is a technique with little bad consequences
D. is a long-awaited answer to mitochondrial diseases
The author suggests that the discussion about food security should stress______.
A. promoting a healthy and humane lifestyle
B. reducing the consumption of animal products
C. advancing the globalization of economy
D. redefining our priorities and pursuing goals
Paragraphs 3 and 4 show that apologies are least valued by those______.
A. actually received a written one
B. only imagined receiving one
C. imagined being betrayed and receiving an apology
D. decide how to split the money
The word "abyss"(Line Para. 1)most probably means "______".
A. very threatening situation
B. densely-populated region
C. highly-industrialized area
D. quite splendid place
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