A strict vegetarian is a person
who never in his life eats anything derived from animals. The main objection to
vegetarianism on a long-term basis is the difficulty to getting enough protein,
the body building elements in food. If you have ever been without meat or animal
foods for some days of weeds (say, for religious reasons) you will have noticed
that you tend to get physically rather weak. You are glad when the fast is over
and you get your reward of a succulent meat meal. Proteins are built up from
approximately twenty food elements called "amino-acids", which are found more
abundantly in animal protein than in vegetable protein. This means you have to
eat a great deal more vegetable than animal food in order to get enough of these
amino-acids. A great of the vegetable food goes to waste in this process and
from the physiologi A. eats the meat of animals only B. eats the vegetable only C. drinks milk only D. eat nothing at all 更多"{{B}}第三篇{{/B}} A stri"的相关试题: [单项选择]{{B}}第三篇{{/B}}
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