问题
单项选择题 A型题
鱼汤冷却后形成凝胶的主要成分是（）
A.短链脂肪酸
B.长链脂肪酸
C.碳水化合物
D.胶原和黏蛋白
E.矿物质
答案
参考答案：D
解析：存在于鱼类结缔组织和软骨中的含氮浸出物主要为胶原和黏蛋白，是鱼汤冷却形成凝胶的主要成分。
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鱼汤冷却后形成凝胶的主要成分是（）
A.短链脂肪酸
B.长链脂肪酸
C.碳水化合物
D.胶原和黏蛋白
E.矿物质
参考答案：D
解析：存在于鱼类结缔组织和软骨中的含氮浸出物主要为胶原和黏蛋白，是鱼汤冷却形成凝胶的主要成分。
L：Hello, Pan Wei. Is this your new car? How nice! P：Hi, Lisa. Would you like to go for a ride with me? L：Great! P：Well, you don’t have to wear the seat belt（安全带）. 1 . L：I’m sure you are. You know, not all drivers are as good as you. P： 2 . No one will stop us right now. L：Oh; no, no. We don’t obey traffic rules for the police. 3 P：I agree, but I feel uncomfortable wearing a seat belt. L：So do I, a little. 4 You would go flying if your car was hit while you are not wearing a seat belt. P： 5 I am wearing it. Do you know who invented the seat belt? The man should be remembered. L：I don’t know. But Volvo, a famous Swedish car maker, was the first to use seat belts in 1849.
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