[多选题,7.6分] 用二分法求方程f(x)=x3+x-1=0在区间[0,1]内的根,进行一步后根的所在区间为 ( )进行两步后根的所在区间为 。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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