【单选题】Which of the following is the study of language and social classes, ethnic groups and genders?
B.
Comparative linguistics
C.
Educational Linguistics
【单选题】( )Which of the following about groups is true?
A.
You need five or more people to be considered a work group.
B.
The definition of groups suggests that a group is two or more people together for any reason.
C.
Groups can be either formal or informal.
D.
Formal groups are aimed at specific social agendas.
【判断题】导电能力介于道题和绝缘体之间的物质称为半导体。
【单选题】群障责任单位按()的原则,快速处理故障。
【单选题】People are often influenced by reference groups to which they do not belong. ________ refer to groups to which an individual wishes to belong.
【多选题】根据沙障在地面的分布形状,大致可将沙障分为()。
【多选题】“障”为遮蔽之意,中医学将“障”按其部位分为()。
【单选题】为了向顾客说明手表防水性能好,将手表放在水中,然后交给顾客检验,这是( )。