题目内容
无论是单项式数列还是组距式数列，其必不可少的两个基本要素是（ ）
查看答案
搜索结果不匹配？点我反馈
更多问题
变量数列包括（ ）
下列叙述中正确的是()。
工程活动是非常复杂的社会现象。试图从单一视角理解工程不仅比较困难,而且非常局限。因此,我们需要从多个维度认识工程现象,除了哲学、技术和经济的维度,还包括()
The Family Life is Being Disturbed by InternetAccording to the latest survey, family life is being disturbed because parents and children are defeated by the large volumes of 1___________they are dealing with almost every day.As a result, three in ten of the interviewees are now 2__________ to cut down their use of blogs as well as emails.Surprisingly, the study found the majority of children and adults 3___________ communicate face to face. More than half of all families said network played an important role in their life and 4___________ of parents said Internet had disturbed their normal family life.The findings let family groups to warn that if parents 5_________ spending more time checking emails and social networks than with their children, it could have a bad 6_________ on the home. Some parents have realized this.Among children aged 10 to 18, who 7_________ with the development of the Internet, 38 percent 8_________ to feeling defeated by the huge volumes of message. 9_________ numbers of adults felt the same way.The survey also found that 4 percent of children and 33 percent of adults are taking measures to reduce their 10_________ on messaging and networking. They decided to spend more time with their family members in the open air in future.
微信支付 
支付宝支付