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【单选题】
下列哪项不是乳香的性状鉴别特征( )A.
呈小形乳头状,泪滴状或不规则小块
B.
表面淡黄色,有时微带绿色或棕色,半透明
C.
有的表面常常有一层黄棕色粉末
D.
脆,断面蜡样,无光泽,少数呈玻璃样光泽
E.
嚼之粘牙,唾液成乳白色,微有麻辣感
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皮皮学刷刷变学霸
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【单选题】When a word v=(v 1 , v 2 v 3 ,..., v 7 ) is received at the decoder’s input port of a (7,3) linear code, the error syndromes s=( s 1 , s 2 , s 3 , s 4 ) for the received word v is calculated as matri...
A.
s= H T v
B.
s= vH
C.
s= vH T
D.
s= v T H
【单选题】When a word v=(v 1 , v 2 v 3 ,..., v 7 ) is received at the decoder's input port of a (7,3) linear code, the error syndromes s=( s 1 , s 2 , s 3 , s 4 ) for the received word v is calculated as matri...
A.
s= vH T
B.
s= H T v
C.
s= vH
D.
s= v T H
【单选题】Known solid’s main view and top view, select correct left view ( )
A.
a
B.
b
C.
c
D.
d
【单选题】一项调查表明，有33％的被调查者认为她们所在的公司十分适合女性工作。假定总体比例为33％，取边际误差分别为10％，5％，2％，1％，在建立总体比例的95％的置信区间时，随着边际误差的减少，样本量会( )。
A.
减少
B.
增大
C.
可能减少也可能增大
D.
不变
【单选题】Sethe is known as one of the main characters in Toni Morison’s____________.
A.
Beloved
B.
Sula
C.
Tar Baby
D.
The Bluest Eye
【简答题】Exports are of two main kinds, goods and services, the former being known as visible items and the second as invisible. Over a period of time the total value of exports should balance with the total v...
【单选题】一项调查表明,有33%的被调查者认为她们所在的公司十分适合女性工作。假定总体比例为33%,取边际误差分别为10%,5%,2%,1%,在建立总体比例的96%的置信区间时,随着边际误差的减少,样本量会
A.
减少
B.
增大
C.
可能减少，也可能增大
D.
不变
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