题目内容

叙述HLB值的定义及对表面活性剂应用。

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The Systemic Functional Grammar was first put forward by______.

A. Saussure
B. John Austin
C. Noam Chomsky
D. M.A.K. Halliday

______convey grammatical meaning.

A. Inflectional affixes
B. Derivational affixes
C. Prefixes
D. Suffixes

试述表面活性剂的分类并列举代表性物质的应用。

The word "bead" originally means "prayer", but later it refers to "the prayer bead", the visible manifestation of a prayer, finally "small, ball-shaped piece of glass, metal or wood". This is an example of______.

A. meaning-shift
B. widening of meaning
C. narrowing of meaning
D. loss of meaning