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Chemistry is the study of the behavior and composition of matter. All foods are made up of chemical substance which undergoes ch
Chemistry is the study of the behavior and composition of matter. All foods are made up of chemical substance which undergoes ch
admin
2013-10-17
35
问题
Chemistry is the study of the behavior and composition of matter. All foods are
made up of chemical substance which undergoes chemical changes when cooking 【M1】______
in an oven or digested within the body. The cooking of meat and vegetables induce 【M2】______
chemical changes, making it more delicious: similarly the leavening action of 【M3】______
baking powder is a straightforward chemical change, as is the conversion of
starch into sweet sugars by digestion.
Cookery is a science requiring a knowledge of chemistry. 【M4】______
This is evident from the variety of cooking products and food additives available
as cooking oils, fats, colorings, sweeteners, tenderizers, flavorings, screaming
agents, preservatives, etc. Each is carefully prepared before painstaking 【M5】______
research.
It is therefore essential for trained cookers to understand 【M6】______
chemical science in order to appreciate the chemistry nature of foods 【M7】______
and the changes achieving on cooking. Homeworkers should also 【M8】______
know cleansing agents and textiles used in the home and how the latter 【M9】______
responds to the effects of heat, light, water, and chemical cleansing agents. 【M10】______
【M5】
选项
答案
before改为after
解析
(根据文意可以推断这里要表达“之后”的意思,使用before不合逻辑。)
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本试题收录于:
A类竞赛(研究生)题库大学生英语竞赛(NECCS)分类
0
A类竞赛(研究生)
大学生英语竞赛(NECCS)
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