首页
登录
职称英语
[originaltext] From the beginning of human history, [21]people have used oil
[originaltext] From the beginning of human history, [21]people have used oil
游客
2024-01-31
46
管理
问题
From the beginning of human history, [21]people have used oils from seeds and nuts. [19]Most of the time these oils are used as food, especially in cooking. But sometimes they have other uses. [19] For example, oils are found in paint and in cleaning products, like soap. Oil is separated from seeds by using pressure. A machine called a press is often used. Sometimes it is surprising to learn how much oil the seeds contain. Sesame, cotton and sunflower seeds, for example, all contain at least 50% oil. [20]Soybean is an important seed around the world, but it is only 20% oil. So chemicals are needed to release oil from soybeans.
The first step in pressing the oil from seeds is to crush the seeds between two stones. A cloth container or bag is filled with the crushed seeds. Then the bag is hung up. Some of the oil will flow out of the bag and can be collected. But some oil will remain in the crushed seeds inside the bag. The easiest way to get the rest of the oil out is to place heavy rocks on the crushed material. Oil can also be collected with small, hand-operated machines. Small presses are important in areas where electricity or gasoline cannot be used. They are also a good way to test if a local market for oil exists.
19. What use of oil is NOT mentioned in the passage?
20. How much oil does soybean contain?
21. Which of the following is the best title for the passage?
选项
A、50%.
B、40%.
C、30%.
D、20%.
答案
D
解析
短文提到,大豆的含油量为20%,故选D。百分比作选项,难点不在猜测问题是什么类型,而在于对文中出现的每个百分比(50%和20%)做出准确的笔记。在听到问题后才能根据笔记作答。
转载请注明原文地址:http://tihaiku.com/zcyy/3409113.html
相关试题推荐
[originaltext]M:WhenIsayIliveinSweden,peoplealwayswanttoknowabout
[originaltext]Whenpeoplethinkofcarrots,theyusuallypictureintheirm
[originaltext]Today,mostpeoplecelebrateNewYear’sDayonJan,1.People
[originaltext]Today,mostpeoplecelebrateNewYear’sDayonJan,1.People
[originaltext]Whatmakesyouhappy?That’saquestionBritishPrimeMiniste
[originaltext]Formanyyears,peopleinAmericancitieshavedependedonfa
[originaltext]Formanyyears,peopleinAmericancitieshavedependedonfa
[originaltext]Formanyyears,peopleinAmericancitieshavedependedonfa
[originaltext]Chickenfeathersareuseful,andnotjusttoachicken.Some
[originaltext]Chickenfeathersareuseful,andnotjusttoachicken.Some
随机试题
Inthispart,youarerequiredtowriteanessayofnolessthan200wordsonUn
[originaltext]Theprocessofadjustingtolifeinanewcountryisoftenca
在中国古代“诸子百家”之中,墨子占有非常特殊的一席之地。墨子认为,劳苦大众的痛苦是由当时“饥而不得食,寒而不得衣,劳而不得息”的社会状况造成的。他谴责一
A.活血祛瘀、行气止痛B.补气,活血,通络C.破血下瘀D.温经散寒,养血祛瘀E.
运输从总体上可分为( )部分。 A.厂内运输 B.国际运输 C
一般资料:求助者,女性,38岁,律师。 案例介绍:求助者因为婚姻问题而内心痛苦
A.【成份】 B.【用法用量】 C.【不良反应】 D.【禁忌】 E.【注
(2021年真题)下列选项中,不属于前任会计师的是()。A.对本期财务报表
患者,女,32岁,颈前肿大饱满2个月,性情急躁,易激动,多汗,消瘦。检查:P10
“所有者权益变动表”采用矩阵形式列示。()
最新回复
(
0
)