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【单选题】
DNA 复制起始过程中 1 DNA-pol III 2 SSB 3 引物酶 4 解螺旋酶起作用的顺序是
A.
① ② ③ ④
B.
④ ② ③ ①
C.
③ ① ② ④
D.
① ④ ③ ②
E.
④ ① ③ ②
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【单选题】如果要快速复制一个图形,要先用“选择工具”选择要复制的图形,然后按住( )键的同时,拖曳鼠标快速复制图形。
A.
Shift
B.
Insert
C.
Ctrl
D.
Home
【单选题】( )Was it in 1998 ________ he got the job?
A.
which
B.
when
C.
that
D.
this
【单选题】Was it in 1998 ____ he was still at middle school ____ this boy became expert at computer?
A.
that; where
B.
when; where
C.
in which; in which
D.
when; that
【单选题】如果按结构基本体系分类,则斜拉桥属于 ( )
A.
梁式桥
B.
刚构桥
C.
悬索桥
D.
组合体系桥
【简答题】A. It has over 500 employees. B. It was started in 1998. C. It has several branches. D. It is located in Beijing.
【单选题】如果要快速复制一个图形,要先用“选择工具”选择要复制的图形,然后按住( )键的同时,拖曳鼠标快速复制图形。
A.
Insert
B.
Shift
C.
Home
D.
Ctrl
【多选题】如果要快速复制一个图形,要先用“选择工具”选择要复制的图形,然后按住( )键的同时,拖曳鼠标快速复制图形。
A.
home
B.
ctrl
C.
shift
D.
alt
【单选题】如果要快速复制一个图形,要先用“选择工具”选择要复制的图形,然后按住( )键的同时,拖曳鼠标快速复制图形。
A.
Insert
B.
Home
C.
Shift
D.
Ctrl
【单选题】A.It has over 500 employees. B.It was started in 1998. C.It has several branches. D.It is located in Beijing.
A.
It has over 500 employees.
B.
It was started in 1998.
C.
It has several branches.
D.
It is located in Beijing.
【单选题】如果按结构基本体系分类,则斜拉桥属于( )
A.
梁式桥
B.
组合体系桥
C.
刚架桥
D.
悬索桥
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