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【单选题】
芹菜、玉米、甘薯等食物中含有许多细丝,这些细丝是膳食纤维。下列有关膳食纤维的叙述,不正确的是( )A.
膳食纤维是一类特殊的维生素,被称为“第七类营养素”
B.
膳食纤维能够促进胃肠的蠕动和排空,减少患大肠癌的机会
C.
膳食纤维有利于预防糖尿病,有利于维持正常体重
D.
膳食纤维是肠道里的匆匆过客,随粪便一起排出体外
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A.
scientific
B.
academic
C.
literary
D.
theoretical
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B.
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C.
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D.
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E.
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A.
researcher
B.
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C.
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D.
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A.
前驱期
B.
初期
C.
激期
D.
恢复期
E.
后遗症期
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A.
前驱期
B.
初期
C.
激期
D.
恢复期
E.
后遗症期
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