【单选题】Human beings are different from animals ______ they can use language as a tool to communicate.
【单选题】The furniture in his room is quite different __________ in yours
【判断题】设{Xn}为一独立同分布的随机变量序列,若 Xi的数学期望存在,则{Xn}服从大数定律?( )
【简答题】设计调研的方法有(),其中()中我们可以使用线上统计工具生成饼状图、条形图、柱形图及关键词词云。 A.访谈法B.问卷法C.观察法
【简答题】华光眼镜有限公司(以下简称华光眼镜)成立于上世纪 70 年代。华光眼镜从上世纪 90 年代末开始拓展眼镜零售连锁网络,是国内较早从事眼镜连锁专卖店的企业。经过多年的发展,华光眼镜的市场份额占据省内第一、全国第五的位置。 2005 年末,华光眼镜在全国拥有超过 100 家连锁店,其中 80% 在甲省及周边地区。 随着人们生活水平的提高和消费能力的增强,消费者除了重视眼镜的基本功能外,还越来越重视美观...
【单选题】We learn from the passage that the author ______.
A.
comments on three different opinions
B.
favours one of the three opinions
C.
explains an opinion of his own
D.
revises someone else's opinion
【单选题】The food _______ my country is quite different ______that here.
【多选题】设计调研的方法有访谈法、问卷法、观察法,其中问卷法中我们可以使用线上统计工具生成( )
【单选题】Homesickness is a feeling______.
A.
caused by an alienation from different culture
B.
widely felt but rarely discussed
C.
destructive for individual progress and prosperity
D.
to which people hold cosmopolitan outlooks are immune