二、 固定短语 be composed of 由...组成 三、 句式分析 We(主语) can separate(谓语) the mixture(宾语) into the pure chemical compounds(介词短语) of which it is composed(定语从句) 对定语从句: of which it is composed分析如下: of which(介宾结构, which指代的是the pure chemical compounds) it...
百度试题 结果1 题目We can separate oil into the chemical compounds___it is composed. A. of which B. with which C. in which D. from which 相关知识点: 试题来源: 解析 A 反馈 收藏
We can separate the mixture into the pure chemical compounds ___ it is composed. A.in whichB.of whatC.of whichD.from which 相关知识点: 试题来源: 解析 C 本题为语法结构题。在定语从句中,关系代词前面的介词既受到所修饰的名词影响又受到关系从句中的动词影响。本句中的定语从句中含有一个固定...
GC-MS is a very specific test to identify separate compounds within a sample and is considered the “gold-standard” for drug testing. Confirmatory testing lessens the chance of a false positive, almost reducing the risk to zero.3 However, GS-MS may lead to a false negative if the GC-MS...
How can you separate alumina from bauxite ore associated with silica ? Give equations. View Solution (a) What role does cryolite play in Hall Harnoult process ? (b) How can alumina be separated from silica in bauxite ore associated with silica ? Give equation also. ...
A pizza is an example ofheterogeneous mixture. Because heterogeneous mixture is a mixture that is non-uniform in appearance. Explanation: Because you can separate the cheese, sauce, and crust. Is wood a homogeneous mixture? Complete answer: ...
You are given a mixture of sand, water and mustard oil. How will you separate the components of this mixture ? Explain with the help of different separation methods involved in it. View Solution State whether the following statements are true or false. ...
Find out if liquid or gummy vitamins and supplements are better than tablets, capsules or softgels, are better absorbed, or better for people who have had gastric bypass or who have other conditions. Are enteric coated supplements better than non-enteric coated ones?
Thiamine deficiency has been deemed as a rare deficiency in the developed world, but this is due to the fortification of cereals and bread. If you’re on a grain-free diet, you are very likely going to be deficient in thiamine. Additionally, the thiamine added to food products is usually...
As you may recall from high school chemistry, acids are compounds that donate a hydrogen ion (H+) when mixed with water and have a pH lower than 7. On the other hand, bases are compounds that accept those ions (or hydroxide, OH- ions) and have a pH higher than 7. Understanding ...