单项选择题

A．language
B．vocabulary
C．idioms
D．words
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单项选择题
Languages, whether civilized or not, have the potential for vocabulary expansion.
A． Right
B． Wrong
C． Not mentioned
单项选择题
Which of the following statements best explains why the second of these was the more serious impediment (line 22)
A．Chemical knowledge was limited to a small number of people.
B．The symbolic language used was very imprecise.
C．Very few new discoveries were made by alchemists.
D．The records of the chemical processes were not based on experiments.
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