This means one has to feed approximately 9--10 times as much food value to the animal than one can consume from the carcass. As a system for feeding the hungry, the effects can prove disastrous. At times of crisis, grain is the food of life.
29. The word carcass most probably means__________ .
A) vegetables preserved for future use
B) the dead body of an animal ready to be cut into meat
C) expensive food that consumers can hardly afford
D) meat canned for future consumption
[013]
We all have offensive breath(口臭) at one time or another. In most cases, offensive breath emanates from bacteria in the mouth, although there are other more causes. Until a few years ago, the most doctors could do was to counsel patients with bad breath about oral cleanliness. Now they are finding new ways to treat the usually curable condition.
31. The phrase emanate fromin Paragraph 1 most probably means ______.
A) thrive on
B) account for
C) originate from
D) descend from
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