問題詳情

＜C＞ No matter what we do in the kitchen, science is at work. The application of science will make cookingeasier. For instance, have you boiled an egg and found it split open in the boiling water? The physics lesson thatheated air expands will explain to you 41 . Based on this physics principle, 42 the eggshell 42 nextime, try making a small hole at its fat end before you boil the egg,t43 will give the expanding air a way tospread out, so it won’t crack the eggshell. Besides, it’s easy to make a tasty steak if you know the chemistry 44 it. The key is to put the meat in a hot frying pan (about 140℃ and above). The heat from the pan will causeprotein and sugars in the meat to join together, and thus bring out a special flavor of the meat. Another exampcutting an onion. When you cut up an onion, you often find yourselfle is45 tears. This is because when you cutup an onion, sulphur compounds inside the onion are released and then float into your eyes. Then, what can youdo to avoid this? Simply put the onion in the refrigerator 30 minutes before you cut it.
41.
(A) when will it occur
(B) why it happens
(C) how does it take place
(D) what it is

參考答案

答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)

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