某品牌牛奶包装袋的营养成分表如下：项目每100克营养参考值%蛋白_爱下问搜题

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问题选择题

某品牌牛奶包装袋的营养成分表如下：

项目	每100克	营养参考值%
蛋白质	2.9克	5%
脂肪	3.6克	6%
碳水化合物	4.7克	2%
钠	60mg	3%

下列说法中，正确的是（　　）

A．脂肪是维持生命活动的重要供能物质

B．“碳水化合物”是指维生素，属于六大营养素之一

C．“钠”是指钠元素，其质量分数为60%

D．蛋白质是构成细胞的基本物质，它是由多种氨基酸混合组成

答案

A、油脂包括脂肪和油，脂肪是人体的备用能源，在体内氧化分解生成二氧化碳和水，同时放出能量，是维持生命活动的重要供能物质，所以正确．

B、糖类物质过去被称为“碳水化合物”，所以错误．

C、在牛奶中钠是以无机盐的形式存在的，钠是指钠元素，其质量分数为0.06%，所以错误．

D、蛋白质是构成细胞的基本物质，是机体生长和修补受损组织的原料，它是由多种氨基酸构成的，是纯净物，不是混合物，所以错误．

故选A．

完形填空

Vincent van Gogh was not always an artist. In fact, he wanted to be a(n) __21  and was even sent to the Belgian __22  community of Borinage. He discovered that the miners there __23  deplorable(悲惨的) working conditions and poverty-level wages. Their families __24__  simply to survive. He felt concerned that the small amount of money he received from the church __25  him a moderate life-style, which, __26 , seemed to him unfair.
One cold February evening, while he watched the miners trudging(步履艰难)home, he __27  an old man staggering(蹒跚)toward him across the fields, __28 in a burlap sack for warmth. Van Gogh laid his own clothing out on the bed, __29 enough for one change, and decided to give__30 away. He gave the old man a suit of clothes and gave his overcoat to a pregnant woman whose __31 had been killed in a cave-in.
He lived on starvation rations and spent his money on __32  for the miners. When children in one family had fever, though __33  himself, he packed up his bed and took it to them.
A (an) __34  family in the community offered him free room and board. Van Gogh __35__ the offer, stating that it was the final temptation he must reject if he was to __36  serve his community of poor miners.
He believed that if he wanted them to __37  him, he must become one of them. And if they were to learn of love through him, he must love them enough to __38  with them.
He was aware of the wide chasm(鸿沟)between words and actions. He knew that our lives always __39  louder and clearer than words.
Others are “ __40 ” carefully to your actions. What are you saying to them?

A．office clerk

C．factory worker

D．church minister

A．in contrast

D．as a result

C．brought out

C．the unwanted

D．regrettably

选择题

452-102错算成452-100+2，结果比正确答案结果[ ]

A．少2

B．多2

C．多4