下图中，A、B分别表示脂肪滴在不同部位的状态，在（ ）位置，脂肪滴呈B状态．
A．口腔 B．食道 C．小肠 D．胃
答案：C
题目分析：肝脏是人体最大的消化腺，所分泌的消化液胆汁经胆管流入小肠．胆汁中不含有消化酶，不能对食物进行化学性消化，只能将脂肪乳化成脂肪微粒，加大与消化酶的接触面积．图示中脂肪由A状态的大颗粒，变成了B状态的小颗粒，是小肠内胆汁的作用，所以在小肠内脂肪成B状态．
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| Have you ever asked yourself why children go to school? You may 1 they go to learn languages, P.E., history, science and all other 2 . But why do they learn these things? We send our children to school to prepare them for the time 3 they will grow up and will begin to work for 4 . Nearly everything they study at school has some practical use in their life. But is that the 5 reason why they go to school? There is more in education than just 6 facts. We go to school above all to learn how to learn, so that then we have left school we can 7 to learn. A man who really knows how to learn will always be successful, because whenever he has to do something new which he has never had to do 8 he will rapidly teach himself how to do it 9 the best way. The uneducated person, on the other hand, is 10 unable to do something new, or does it badly. The purpose of school, therefore, is not to teach languages, math, geography, etc, but to teach pupils the way to learn. | ||||
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