— The professor gave a really good speech. — I suggest you ______ him some specific questions about his work experience. ( ) A. have asked B. will ask C. asked D. ask 答案:D
食物中的淀粉、脂肪、蛋白质经人体消化道消化为食糜后,若从幽门处将它引流出体外,其中可被发现的物质有:
(1)淀粉
(2)麦芽糖
(3)葡萄糖
(4)脂肪
(5)甘油
(6)脂肪酸
(7)蛋白质
(8)多肽
(9)氨基酸
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A.(3)(5)(6)(8)(9)
B.(1)(2)(4)(7)(8)
C.(2)(3)(4)(8)(9)
D.(1)(3)(5)(6)(9)