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【多选题】
Ds元件（）A.
是自主转座元件
B.
决定染色体断裂的位点
C.
与 Ac 元件相似
D.
内部有缺失
E.
靠一种非复制机制转座
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反馈参考答案：
举一反三
【单选题】Esta tarde voy a ordenar un poco mi dormitorio y después voy ( ) el supermercado.
A.
al
B.
con el
C.
a el
D.
en el
【单选题】执行以下程序后输出的是 ()。 Private Sub Command1_Click() Ch$="AABCDEFGH" Print Mid(Right(ch$, 6), Len(Left(ch$, 4)), 2) End Sub
A.
CDEFGH
B.
ABCD
C.
FG
D.
AB
【简答题】（ 14 ）执行以下程序后输出的是 Private Sub Command1_Click() Ch$= ” AABCDEFGH ” Print Mid(Righ(ch$,6),Len(left(ch$,4)),2) End Sub A)CDEFGH B)ABCD C)FG D)AB
【单选题】Which of the following led to the slowdown in American educational advances in the last three decades of the 20th century?
A.
No easy access to financial aid.
B.
veremphasis on preschool programs.
C.
A dramatic fall college enrollment rates.
D.
A rise in the number of poor school districts.
【单选题】执行以下程序后输出的是 Private Sub Command1_Click() Ch$=“AABCDEFGH” Print Mid(Right(ch$,6),Len(left(ch$,4)),2) End Sub
A.
CDEFGH
B.
ABCD
C.
FG
D.
AB
【单选题】执行以下程序后输出的是。 Private Sub Commandl_Click ch$ = 'ABCDEFGH': Print Mid(Right(ch$, 6), Len(Left(ch$, 4)), 2) End Sub
A.
CDEFGH
B.
ABCD
C.
FG
D.
AB
【单选题】The passage supports which of the following statements about employees buying shares in their own companies?
A.
At three different companies, approximately nine out of ten of the workers were eligible to buy shares in their companies.
B.
Approximately 90% of the ellgible workers at three different companies chose o buy shares in their companies.
C.
The opportunity to buy shares was discouraged by at least some labor unions.
D.
Companies that demonstrated the highest productivity were the first to allow their employees the opportunity to buy shares.
E.
Eligibility to buy shares was contingent on employees’ agreeing to increased work loads.
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