82
C) have not been able to establish for certain whether or not carbon monoxide could be a main
factor
D) have so far not raised any controversial ideas
E) show that nicotine and carbon monoxide may be
only minor factors
180- The main concern of the text is to ................... .
A)show that the unfavourable effects of smoking on the heart are still under debate
B) emphasise the effects of nicotine and
vitamin d on heart disease
C) describe some experiments on animals to observe the effects of harmful gases
D) compare the harmful effects of nicotine
and carbon monoxide
E) exemplify the researches concerning animal disease
Semantics is the technical term used to refer to the study of meaning, and since meaning is a part of
language, semantics is a part of linguistics. Unfortunately, ―meaning‖ covers a variety of aspects of
language and there is no general agreement
about the nature of meaning, what aspects of it may
properly included in semantics or the way in which it should be described. The term semantics is a
recent addition to the English language. A detailed account of it is to be found in Read.
Share with your friends: 
