首页
登录
职称英语
[originaltext] From the beginning of human history, people have used oils fr
[originaltext] From the beginning of human history, people have used oils fr
游客
2024-01-20
55
管理
问题
From the beginning of human history, people have used oils from seeds and nuts. Most of the time these oils are used as food, especially in cooking. But sometimes they have other uses. 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. 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:https://tihaiku.com/zcyy/3379551.html
相关试题推荐
[originaltext]AccordingtonewresearchbyBritishscientists,teenswhodo
[originaltext]Singaporehastopped131citiesgloballytobecometheworld’
[originaltext]Singaporehastopped131citiesgloballytobecometheworld’
[originaltext]Somekindsofmentalskillsnaturallydecreaseaspeopleget
[originaltext]M:Hi,Rose,youaresoabsorbedthatyoudidn’tevenknowIcame
[originaltext]M:Hi,Rose,youaresoabsorbedthatyoudidn’tevenknowIcame
[originaltext]W:Jack,Iheardyouwerelookingforajob.Haveyoufoundoney
[originaltext]W:Jack,Iheardyouwerelookingforajob.Haveyoufoundoney
[originaltext]W:Jack,Iheardyouwerelookingforajob.Haveyoufoundoney
[originaltext]TheUnitedNationsjustwrappedupaneventfocusedongender
随机试题
Personalpropertyconsistsofallmovablepropertyexceptpropertyrecoverablea
ItwasabeautifulsummerdayandIwastakingawalkinthedowntownareao
[originaltext]Authoritiessayeveryonehasbeentransferredfromaluxuryh
下列哪些不是水平型微指令的特点()。A.一次可以完成多个操作 B.微指令的操
甘草的炮制方法是A.明煅 B.提净 C.米炒 D.土炒 E.蜜炙
2020年12月,中国新能源汽车生产销售双增长,产销双双超过20万辆,再创历史新
某机构对某年464家成长型基金和400家价值型基金的收益进行研究,下列图表显示了
商业银行在进行市值重估时采用的方法是()。A.盯市和敞口 B.盯模和久期
由买卖双方企业之外的第三者建立,以便匹配买卖双方需求与价格的B2B电子商务模式是
(2020年真题)招标人以不合理的条件限制、排斥潜在投标人或者投标人的情形有(
最新回复
(
0
)