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
2024-01-28
7
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 postage?
20. How much oil does soybean contain?
21. Which of the following is the best title for the passage?
选项
A、Cooking.
B、Cleaning.
C、Skin care.
D、Painting.
答案
C
解析
短文第2句开始谈植物油的用处,提到了cooking,paint和cleaning products,只有C项未提及,因而它就是答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3400955.html
相关试题推荐
UniversitiesBranchOutA)Asneverbeforeintheirlonghistory,universi
UniversitiesBranchOutA)Asneverbeforeintheirlonghistory,universi
UniversitiesBranchOutA)Asneverbeforeintheirlonghistory,universi
UniversitiesBranchOutA)Asneverbeforeintheirlonghistory,universi
UniversitiesBranchOutA)Asneverbeforeintheirlonghistory,universi
[originaltext]Nowadaystherearemoreandmorewaysofgoingonholiday.Mor
[originaltext]Nowadaystherearemoreandmorewaysofgoingonholiday.Mor
[originaltext]Togetadriver’slicense,youmusttakeaseriesoftests.Th
[originaltext]Goodafternoon.I’mTeresaDawn,thehousingdirectorherein
[originaltext]Goodafternoon.I’mTeresaDawn,thehousingdirectorherein
随机试题
Whatisthispassagemainlyabout?[br][originaltext]Scientistssayshark
[originaltext]M:Hi,Lynn.Isawyouatregistrationyesterday.Isailedright
提供虚电路服务的通信子网内部的实际操作的方式包括()。A.虚电路方式 B.报文
关于担保物权,下列说法正确的是( )。A.担保物权的标的物无须特定 B.任何
“一头在外”是指产业链交易双方中,一方为集团成员单位,另一方为()。A.集团内
投资决策委员会所议事项具体为()。 Ⅰ.决定公司的投资决策程序及权限设置原则
急性肾衰竭病人由少尿期进入多尿期的标志是每日尿量大于A.200ml B.300
均具有涩肠、敛肺止咳功效的药物是A.五味子、桑螵蛸 B.乌梅、诃子 C.肉豆
在汉朝,由皇帝交办的案件称为( )。 A.讯狱 B.鞫狱 C.诏狱 D
以下关于银行理财产品要素所包含的信息中,一般不包括()。A、产品环境信息
最新回复
(
0
)