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【单选题】
设随机变量 是独立同分布,其分布函数为, 则大数定理对此系列 ( )
A.
适用
B.
不适用
C.
常数 a, b取适当的数值时适用
D.
无法判断
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【简答题】试述上好一节课的基本要求?
【单选题】Amber works 20 days a month at d dollars per day for m months out of the year. Which of the following represents her monthly pay?
A.
B.
C.
D.
【单选题】Which of the following candidates is eligible for the election of councilors?
A.
A 20-year-old British who has been living in the area for a year.
B.
A 30-year-old Englishman who has moved to the area half a year ago.
C.
A 40-year-old British who has been working in the area for 2 years.
D.
A 50-year-old Irishman who has been working and living in the area for 3 years.
【简答题】上课是整个教学工作的中心环节,是提高教学质量的关键。试论述上好一堂课的基本要求。
【单选题】If Company X considered a good year to be any year in which earnings were at least 20 percent of sales, how many of the years shown were good years?
A.
None
B.
1
C.
2
D.
3
E.
4
【单选题】When you are writing an essay that show process, you usually use tense, voice.
A.
present;active
B.
present;passive
C.
past;active
D.
past;passive
【简答题】What items you usually need to show to the clerk when you are going through the security check?
【单选题】阅读下面的教学反思(节选),按照要求答题。努力建立开放的语文课程。语文是母语,原本就是学习其他学科的基础,是学生将来生活的重要交际手段之一。但是长久以来,各科都是孤立进行教学,学科本位的思想太严重了。课程过分强调知识的传承,忽视了知识的联系,以及科目的交流和沟通,把自己封闭起来,然后说语文怎么也考不好,怎么回事。当然我们不否认语文考试存在的弊端,而导致的应试和素质的冲突。课程过度的强调统一,东、南...
A.
新课标强调全面提高学生的语文素养
B.
高中阶段有必要设置统一的必修课程,以实现语文的均衡发展
C.
如今强调有个性地发展,不需要设立统一的必修课程
D.
各科是彼此联系的,必须杜绝学科本位的思想
【简答题】Mariah Evans at the University of Nevada, Reno, led a 20-year study which asked s in 27 countries to tell the number of books that were in their home while they were growing up. Their answers sho...
【单选题】Which group of people below has the highest rate of cell phone ownership? ______
A.
20-year-olds.
B.
40-year-olds.
C.
60-year-olds.
D.
80-year-olds.
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