What type of sentence is "The result is that most of our so-called reasoning consists in finding arguments for going on believing as we already do."？
A simple sentence.
B. A coordinate sentence.
C. A complex sentence.
D. None of the above.
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一直达列车即从始发站到终点站中间不停靠的列车，车次前冠以字母_____。
The word "knight" used to mean "youth", but now it means "a medieval gentleman-soldier". This is an example of______.
A. meaning-shift
B. widening of meaning
C. narrowing of meaning
D. loss of meaning
Which of the following is a back vowel？
A. [i:]
B. [i]
C. [a]
D. [u]
Among the following sounds, ______is a voiceless alveolar fricative.
A. [z]
B. [s]
C. [f]
D. [v]
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