第13题: [单项选择]The type of job an ape could do without supervision would be one which is ______. A. repetitive B. mechanized C. unusual D. intricate 参考答案:A 答案解析:可以第三段第一句话“Apes could do many jobs, such as cleaning streets and the more repetitive types of agricul
第23题: [单项选择]橡胶制品煮沸消毒需用的时间是() A. 5~10min B. 10~20min C. 20~30min D. 30~40min E. 40~50min 参考答案:A 答案解析:橡胶制品用纱布包裹好,水沸后放入,消毒时间为5~10分钟;利用臭氧进行空气消毒时人员必须远离,消毒后20~30分钟人员方可进入。