【单选题】关于频率分布直方图,下列说法正确的是
D.
直方图的高表示该组上的个体在样本中出现的频率与组距的比值
【单选题】When you begin to consider life as a test, you will find______.
A.
you are bombarded with problems and responsibilities
B.
the result of the test is so good that you are delighted
C.
you have many opportunities to grow
D.
you have to go to school to take tests everyday
【单选题】听力原文:W: We'd like to order now. M: Yes? What would you like to begin with? Where does this conversation most probably take place?
【单选题】对《兰亭集序》分析解说有误的一项是
A.
本文是王羲之的旷世之作,不仅文辞优美,而且在书法史上也获得盛誉,又称“兰亭序”。
B.
文章表现了对大自然优美景象的赞美,同时又流露出对人生“修短随化”的无限感慨。
C.
本文先记叙了这次集会的时间、地点、缘起、盛况和个人感受,由景生情,缘情入理,景、情、理达到了高度的统一。
D.
本文语言华美典雅,叙议结合,使人读后如含醴酪,回味无穷。
【单选题】下列选项中不属于金属材料工艺性能的是( )。
【单选题】患者,女性,车祸导致颅脑外伤,处于昏迷状态,护士为其护理口腔,防止误吸的措施是
D.
长期应用抗生素的患者,注意口腔黏膜有无真菌感染