进行水准仪i角检验时,A,B两点相距80m,将水准仪安置在A,B两点中间,测得高差差ABh0125m,将水准仪安置在距离B点2~3m的地方,测得的高差为为为ABh=0186m,则水准仪的i角为()
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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