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【简答题】
根据本章学习的知识,自己找一个公司的网站进行模仿练习 。
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【多选题】专四完形填空新题型模拟题( 2 )
A.
savage
B.
superiority
C.
conceive
D.
transfer
E.
identification
F.
grammatical
G.
reflect
H.
reveals
I.
numerous J . independently K. exclusive L. casts M. sense N. confidentially O. possess Culture is the sum total of all the traditions, customs, beliefs, and ways of life of a given group of human beings. In this (1______), every group has a culture, however savage, undeveloped, or uncivilized it may seem to us. To the professional anthropologist ( 人类学家 ), there is no intrinsic(2______)of one culture over another, just as to the professional linguist there is no intrinsic hierarchy( 等级制度 ) among languages. People once thought of the languages of backward groups as (3_______) and undeveloped forms of speech, consisting largely of grunts and groans. While it is possible that language in general began as a series of grunts and groans, it is a fact established by the study of "backward" languages that no spoken tongue answers that description today. Most languages of uncivilized groups are, by our most severe standards, extremely complex, delicate, and ingenious pieces of machinery for the (4______) of ideas. They fall behind our Western languages not in their sound patterns or (5______ ) structures, which usually are fully adequate for all language needs, but only in their vocabularies, which ( 6_________ ) the objects and activities known to their speakers. Even in this department, however, two things are to be noted: 1. All languages seem to (7_______) the machinery for vocabulary expansion, either by putting together words already in existence or by borrowing them from other languages and adapting them to their own system. 2. The objects and activities requiring names and distinctions in "backward" languages, while different from ours, are often surprisingly (8_________) and complicated. This study of language, in turn, (9________) a new light upon the claim of the anthropologists that all cultures are to be viewed (10________), and without ideas of rank or hierarchy.
【单选题】设总体 X~N( μ , σ 2 ) , σ 2 是未知参数,设 X1,X2, ... Xn 是 X 的一组样本值,现对 μ 进行假设检验。若在显著性水平 α = 0.05 下接受了 H0 : μ = μ 0 ,则当显著性水平改为 α = 0.01 时,下列说法正确的是 ( ) 。
A.
必接受 H0
B.
必拒绝 H0
C.
可能接受，也可能拒绝
D.
犯第二类错误的概率必减小
【简答题】同步发电机,当0< Ψ<90 时,电枢反应性质为 ;当 Ψ<0 时,电枢反应性质为 。
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