Problem Solving

试题详情

题目:

Of the following symbols, which one can be substituted for the question mark in the above expression to make a true statement for all values of x such that –1 < x ≤ 2 ? 

选项:

A、A =
B、B <
C、C ≥
D、D >
E、E ≤

答案:

B

提问:

题目不懂
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提问:

没懂题目,少东西吧
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