试题与答案

如图表示人体的消化和吸收过程,l-5表示消化液(5为肠液)、,纵向箭头表示消化液

题型:选择题

题目:

如图表示人体的消化和吸收过程,l-5表示消化液(5为肠液)、,纵向箭头表示消化液对相应物质的消化作用,a、b、c分别表示淀粉、蛋白质和脂肪的最终消化产物.下列说法中正确的是(  )

A.1是唾液,能将淀粉消化成葡萄糖

B.五种消化液中消化类型与其他四种不同的是4

C.1、2、3中都只含一种酶

D.4和5发挥作用的场所都是小肠

答案:

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   means to have the right to do certain things. ,Young men and women at this age can get a part-time job

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  all the time. In many parts of North America, sixteen is the age when one can get a driver's license; in

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       Voting is another right that marks you have grown up.  In the United States, Canada and the U.K.,

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   must have an understanding of the needs of society, and they must also learn how politics works.

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