皮皮学,免费搜题
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【多选题】
有效市场细分的条件有哪些?
A.
可衡量性
B.
可进入性
C.
可比较性
D.
可盈利性
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【单选题】已知等差数列{a n }的公差为2,若 , , 成等比数列,则 等于( )
A.
-4
B.
-6
C.
-8
D.
-10
【简答题】已知等差数列 的公差为2,若 成等比数列, 则 =' (     ' ) A  –4           B  –6            C  –8          D  –10
【简答题】Work Your Mind Here’s something to think about the next time you ask your teacher for help: struggling with schoolwork on your own can help you learn. According to a recent study, the more you struggl...
【单选题】In your first days at the school you' 11 be given a test to help the teacher to ______you to a class at your level.
A.
locate
B.
assign
C.
deliver
D.
place
【单选题】已知等差数列 的公差为2,若 成等比数列,则a 2 =(  )
A.
-4
B.
-6
C.
-8
D.
-10
【单选题】已知等差数列 中, =2, =8,则数列的第10项为( )
A.
12
B.
14
C.
16
D.
18
【单选题】氨基酸在等电点时,主要以何种形式存在
A.
阳离子
B.
阴离子
C.
两性离子
D.
以上都不是
【单选题】In your days at school you’ll be given a test to help the teacher to ____ you to a class at your level.
A.
locate
B.
assign
C.
deliver
D.
place
【单选题】已知等差数列 的公差为 ,且 ,若 ,则 为
A.
12
B.
10
C.
8
D.
4
【单选题】In your days at school you’ll be given a test to help the teacher to ____ you to a class at your level.
A.
deliver
B.
assign
C.
locate
D.
place
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