单选题
{{U}}Questions 1-2{{/U}} refer to the following graphs.
Vitamin C Content of Foods
interpretation questions, each pair referring to a different set of graphs. However, to illustrate the variety of questions that can be asked, in this exercise set, for some of the graphs there is only one question and for some there are three questions.
{{U}}Questions 1-2{{/U}} refer to the following graphs.
Vitamin C Content of Foods
interpretation questions, each pair referring to a different set of graphs. However, to illustrate the variety of questions that can be asked, in this exercise set, for some of the graphs there is only one question and for some there are three questions.
单选题
What is the ratio of the amount of Vitamin C in 500 grams of orange to
the amount of Vitamin C in 500 grams of orange juice?
【正确答案】
C
【答案解析】According to the graph on the left, there are approximately 70 milligrams of vitamin C in 100 grams of orange and 40 milligrams in the same amount of orange juice. This is a ratio of 70:40 = 7:4. Since the question refers to the same amount of orange and orange juice (500 grams), the ratio is unchanged.
单选题
How many grams of tomato would you have to eat to be certain of getting more vitamin C than you would get by eating 100 grams of raw broccoli?
A. 300B. 500C. 750D. 1200E. 1650
【正确答案】
【答案解析】From the graph on the right, you can see that by eating 100 grams of raw broccoli, you could receive as much as 165 milligrams of vitamin C. Since 100 grams of tomato could have as little as 10 milligrams of vitamin C, you would have to eat 1650 grams of tomato to be sure of getting 165 milligrams of vitamin C.