在数学表达式中，符号“lim”通常表示什么运算？
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Correct answer
B. 极限
Principle or equation
数学符号“lim”是limit的缩写，表示极限运算。
Why this answer is correct
“lim”是英文limit的缩写，在数学中用于表示极限，例如lim(x→a) f(x)表示当x趋近于a时f(x)的极限。
Example
lim(x→0) (sin x)/x = 1，即当x趋近于0时，(sin x)/x的极限为1。
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