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【单选题】
My flatmate is very good. The dishwasher is broken so every night he does the ______.
A.
washing down
B.
washing over
C.
washing up
D.
washing on
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【单选题】某一贫困地区所估计营养不良人数高达20%，然而有人认为这个比例还要高，随机抽取100人发现有30人营养不良，欲检验该说法是否正确，取显著性水平α=0.05，则（）。
A.
假设形式为H0：π≤0.2，H1：π＞0.2，可能犯第一类错误
B.
假设形式为H0：π≤0.2，H1：π＞0.2，可能犯第二类错误
C.
假设形式为H0：π≥0.2，H1：π＜0.2，可能犯第一类错误
D.
假设形式为H0：π≥0.2，H1：π＜0.2，可能犯第二类错误
查看完整题目与答案
【单选题】sense
A.
n. 感觉
B.
n. 思想
C.
n. 议员
D.
v. 觉察到
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【单选题】使用小砌块砌筑时，应( )。
A.
底面朝上正砌于墙上
B.
底面朝上反砌于墙上
C.
正面朝上反砌于墙上
D.
正面朝上反砌于墙上
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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.
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【单选题】显著性 水平 α=0.05 ,则犯第一类错误的概率 α 为( )
A.
0.05
B.
0.25
C.
0.95
D.
不能确定
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【单选题】使用小砌块砌筑时应( )。
A.
正面朝上反砌于墙上
B.
正面朝上正砌于墙上
C.
底面朝上反砌于墙上
D.
底面朝上正砌于墙上
查看完整题目与答案
【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
查看完整题目与答案
【单选题】sense
A.
n. 客人
B.
n. & a.乐趣
C.
n. 感觉
查看完整题目与答案
【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 。
查看完整题目与答案
【单选题】砌块应底面朝上反砌于墙上，中型砌块搭砌长度不得小于块高的( )，也不可小于150mm。
A.
40181
B.
40182
C.
40212
D.
40241
查看完整题目与答案
相关题目：
【单选题】某一贫困地区所估计营养不良人数高达20%，然而有人认为这个比例还要高，随机抽取100人发现有30人营养不良，欲检验该说法是否正确，取显著性水平α=0.05，则（）。
A.
假设形式为H0：π≤0.2，H1：π＞0.2，可能犯第一类错误
B.
假设形式为H0：π≤0.2，H1：π＞0.2，可能犯第二类错误
C.
假设形式为H0：π≥0.2，H1：π＜0.2，可能犯第一类错误
D.
假设形式为H0：π≥0.2，H1：π＜0.2，可能犯第二类错误
查看完整题目与答案
【单选题】sense
A.
n. 感觉
B.
n. 思想
C.
n. 议员
D.
v. 觉察到
查看完整题目与答案
【单选题】使用小砌块砌筑时，应( )。
A.
底面朝上正砌于墙上
B.
底面朝上反砌于墙上
C.
正面朝上反砌于墙上
D.
正面朝上反砌于墙上
查看完整题目与答案
【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.
查看完整题目与答案
【单选题】显著性 水平 α=0.05 ,则犯第一类错误的概率 α 为( )
A.
0.05
B.
0.25
C.
0.95
D.
不能确定
查看完整题目与答案
【单选题】使用小砌块砌筑时应( )。
A.
正面朝上反砌于墙上
B.
正面朝上正砌于墙上
C.
底面朝上反砌于墙上
D.
底面朝上正砌于墙上
查看完整题目与答案
【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
查看完整题目与答案
【单选题】sense
A.
n. 客人
B.
n. & a.乐趣
C.
n. 感觉
查看完整题目与答案
【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 。
查看完整题目与答案
【单选题】砌块应底面朝上反砌于墙上，中型砌块搭砌长度不得小于块高的( )，也不可小于150mm。
A.
40181
B.
40182
C.
40212
D.
40241
查看完整题目与答案