【单选题】已知a=(1,2,3,4,5),b=tuple(reversed(a)),则a[0]与b[0]的值分别为( )。
【单选题】男性,36岁,大面积烧伤后8小时,已静脉输液3000ml,判断其血容量是否补足的简便、可靠指标是( )
【单选题】某学生在显微镜下观察落花生子叶的切片,当转动细准焦螺旋时,有一部分细胞看得清楚,另一部分细胞较模糊,这是由于 ( )
【单选题】已知“t=tuple(range(0,10))”,则print(t[-1:3:-2])的结果是( )。
【单选题】Principal White has been working in the school for about 20 years, ________ all his energy to teaching an d researching as well as the running of a healthy school. [ ]
【单选题】男性,36岁,大面积烧伤后8小时,已静脉输液3000ml,判断其血容量是否补足的简便、可靠指标是
【单选题】对出口商有利的贸易结算汇款方式是 ( )
【单选题】某工厂计划生产甲、乙两种产品。生产每套产品所需的设备台时、A、B两种原材料和可获利润以及可利用资源数量如下表所示。则应按()方案来安排计划以使该工厂获利最多。
【单选题】I have been teaching my sister how to use the internet, it’s necessary to learn the skill. ----_____________________.