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【简答题】
为了确定灯泡的使用寿命,在一批灯泡中随机抽取100个进行测试,所得到的结果如下: 习题3.2.xlsx 要求: (1)利用计算机对上面的数据进行排序。 (2)以组距为10进行等距分组,整理成频数分布表。 (3)根据分组数据绘制直方图,说明数据分布的特点。 (4)制作茎叶图,并与直方图做比较。
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举一反三
【单选题】Which of the following statements is true about grammar practice?
A.
When doing transformation drills, the students also need to change the forms of the given prompts
B.
In substitution drills, the students change a given structure in a way so that they are exposed to another similar structure
C.
In meaningful practice the focus is on the production, comprehension or exchange of meaning
D.
An activity cannot have elements of both mechanical and meaningful practice
【简答题】《秦兵马俑》与《霍去病墓石雕群》的艺术风格有何不同?
【单选题】In grammar practice, substitution and______ drills are most frequently used in mechanical practic。
A.
meaning
B.
matching
C.
correction
D.
transformation
【单选题】In grammar practice, substitution and drills are most frequently used in mechanical practice.
A.
meaning
B.
matching
C.
correction
D.
transformation
【简答题】此视频是黄梅戏《 》中的著名唱段《夫妻双双把家还》,七仙女的扮演者是黄梅戏大师( )。
【简答题】In what way can prompts be used for grammar practice?
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