1mol硬脂酸(即18碳饱和脂肪酸)彻底氧化成CO2和H2O时净生成的ATP的摩尔数。
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为什么在长期饥饿或糖尿病状态下,血液中酮体浓度会升高?
Fill in the blanks with the information in your text-book.In this chapter, we will deal with several less-known methods of word formation that also deserve our attention, such as blending, ___1___, borrowing, clipping, ___2___, and initialism.
Fill in the blanks with the information of Chapter 6: 6.2 Conversion 转类法Conversion refers to the creation of a new word from an existing word without any change in form. The same word just converts from one part of speech into another part of speech. For example, the noun Google is the name for an Internet search engine. We can say: Students can get all sorts of information from Google. We can also say: Students googled for answers before classes. The word google experienced a process of conversion, form a noun to a verb. This word formation process is referred to as ___1___ ___2___ or null derivation, with the assumption that the formal change between words results in the addition of an invisible morpheme. (每空一词)
永磁同步电机与普通直流电机和异步电机相比,它有()优点。
A. 功率密度大
B. 转矩、转动惯量小
C. 运行效率高
D. 转轴上无滑环和电刷