a水果主要供给的营养素是维生素,其中以维生素C和维生素A最为重要,水果的维生素C不像烹煮蔬菜时会大量流失,因此是维生素C的天然补充食品。维生素C能延缓老化,是美容不可缺乏的营养素。 The fruit main supplies nutrient is the Vitamin, in which is most important by Vitamin C and Vitamin A, fruit's Vitamin...
A. vitamin A B. vitamin B C. vitamin C 相关知识点: 试题来源: 解析 C. vitamin C 蔬菜和水果富含维生素,尤其是维生素C,对人体免疫系统和整体健康至关重要。虽然它们也含有维生素A和B族维生素,但维生素C是与水果和蔬菜最密切相关的维生素。因此,答案为C. vitamin C。反馈...
百度试题 结果1 题目Fruits and vegetables are rich in ___. A. vitamin B. vitamins C. a vitamin D. the vitamin 相关知识点: 试题来源: 解析 B。vitamin 是可数名词,这里表示泛指,用复数形式。A、C、D 选项形式错误。反馈 收藏
考查动词和介词。句意:猕猴桃富含大量维他命,包括维C。第一个空为实义动词做句子谓语动词,表示 "包含" ;第二个空为介词做句子状语,表示 "包括" 。因此选A项。结果一 题目 【题目】Kiwi fruitsa lot of vitamins,vitamin C.A. contain;includingB. include; containingC. include ; costainedD. contain; inc...
Importance of carotenoid in retinol conversion to Vitamin A; Amount of carotenoid needed for turning beta carotene into retinol; Caution on taking carotenoid-rich supplements; Body requirements for vitamin A and other nutrients by the National Academy of Science....
解析 B。解析:本题考查名词的用法以及健康饮食知识。“vitamin”(维生素)是可数名词,这里表示泛指多种维生素,要用复数形式“vitamins”。选项A是单数形式,不符合题意;选项C“a vitamin”表示一种维生素,语义不准确;选项D“the vitamin”表示特指某一种维生素,这里不需要特指,所以B正确。
Vitamin C in fruits can help with _. A. making our bones stronger B. improving our eyesight C. preventing scurvy D. making our hair shiny 相关知识点: 试题来源: 解析 C。解析:水果中的维生素C有助于预防坏血病(scurvy)。维生素C对骨骼强壮(A选项)、改善视力(B选项)、使头发有光泽(D选项)没有...
Importance of carotenoid in retinol conversion to Vitamin A; Amount of carotenoid needed for turning beta carotene into retinol; Caution on taking carotenoid-rich supplements; Body requirements for vitamin A and other nutrients by the National Academy of Science....
A new voltammetric sensor for electrocatalytic determination of vitamin C in fruit juices and fresh vegetable juice using modified multi-wall carbon nanotu... The electrocatalytic oxidation of ascorbic acid (AA) has been studied by p-aminophenol modified carbon nanotubes paste electrode (APMCNTPE...
A method was developed for the determination of vitamin C in fruits and vegetables by ultra performance liquid chromatography-quadrupole time-of-flight mass spectrometry. The main factors which affect the sensitivity and stability of vitamin C in the sample preparation and instrument analysis were inves...