【简答题】If A=[4,5,7,9],B=[1,2,4,5],let C=[A-B],so C=(_);
【单选题】Shu Pulong has helped at least 1000 people bitten by snakes. It was seeing people with snake bites that led me to this career,” he said. In 1963, after his army service, Shu entered a medical school a...
【简答题】If A=[9,6,3],B=[7,4,1],let C=[A-B],so C=(_);
【简答题】I often walk from work to the Embarcadero BART station, where I catch a train back to the East Bay. Several times, I saw a gentleman who I presumed was homeless. He had a lot of his possessions tied d...
【判断题】数量标志表明单位属性方面的特征,其表现只能用文字、语言来描述,如工人的性别。( )
【简答题】Shu Pulong has helped at least 1,000 people bitten by snakes. "It was seeing people with snake bite that led me to this career," he said. In 1963,after his army service, Shu entered a medical school a...
【单选题】对远用眼位配适点进行评估时,顾客与眼睛定配师面对面坐在配适操作台两侧,双方视线保持在同一高度上,顾客戴上装好的渐变焦眼镜,嘱顾客以舒适的姿势向前直视。定配师用左眼观察顾客的( )眼,确认远用眼位配适点(配镜十字)在垂直和水平方向上是否位于瞳孔中心。
【单选题】张先生买了块新手表,把它与家中的挂钟校时,发现手表比挂钟一天走慢了三分钟;后来他又把家中的挂钟与电台的标准时校时,发现挂钟比电台标准时走快了三分钟。张先生因此推断,他的表是准时的。 以下哪项是对张先生推断的正确评价?( )
A.
张先生的推断是正确的,因为手表比挂钟慢三分钟,挂钟比标准时快三分钟,这说明手表准时
C.
张先生的推断是正确的,因为他综合考虑了多种可能
D.
张先生的推断是错误的,因为挂钟比标准时快三分钟,是标准的三分钟,手表比挂钟慢三分钟,是不标准的三分钟
【多选题】“尊重原则”是医学科研的重要伦理原则之一,它包括____、____、____和保密权。
【判断题】数量标志表明单位属性方面的特征,其表现只能用文字、语言来描述,如工人的性别。( ) 标志是反映统计总体数量特征的概念和数值。( )