共 3 類科共用卷 一般警察人員考試四等考試-水上警察人員類別輪機組一般警察人員考試四等考試-水上警察人員類別航海組一般警察人員考試四等考試-行政警察人員類別英文115 年第 23 題單選題Because the tiny organisms could not be seen with the naked eye, the scientist had to use a ______ to detect them.AquotationBmicroscope正確答案ChelicopterDparachute 答案與詳解