All of the following statements are true of climate scientists EXCEPT ______.
A. they are all clued up about climate.
B. they don't know much about climate.
C. they are probing into the field of climate.
D. they are uncertain of climatic phenomena.
Language change is ______.
A. universal, continuous and to a large extent, regular and systematic.
B. continuous, regular, systematic, but not universal.
C. universal, continuous, but not regular and systematic.
D. always regular and systematic, but not universal and continuous.
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