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【多选题】
以下哪项操作可以复制关键帧（ ）A.
在效果控件面板中选择一个或多个关键帧，执行【编辑】|【复制】菜单命令，然后将指针移动到你想让第一个关键帧出现的位置，然后执行【编辑】|【粘贴】菜单命令。
B.
在效果控件面板中选择一个或多个关键帧，执行Ctrl+C键，然后将指针移动到你想让第一个关键帧出现的位置，然后按Ctrl+V键。
C.
在效果控件面板的时间轴视图区域，按住 Alt 键，并将关键帧拖到新位置即可复制关键帧。
D.
在效果控件面板的时间轴视图区域，按住 Ctrl 键，并将关键帧拖到新位置即可复制关键帧。
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【单选题】Under such a situation, it was the assistant' s duty either to do what she was requested to or to explain why she was unable to comply. Instead, she rudely turned a deaf ear to the request and walked ...
A.
complaint
B.
apology
C.
invitation
D.
business
【单选题】It’s necessary to be prepared for a job interview, ( ) the answers ready will be of great help.
A.
to have had
B.
having had
C.
have
D.
having
【单选题】It’s necessary to be prepared for a job interview. the answer ready will be of great help.
A.
To have had
B.
Having had
C.
Have
D.
Having
【单选题】43-4. 下列商品按照价格敏感性从强到弱排序 ( )
A.
牙膏- 牙刷 - 刷牙杯-漱口水
B.
漱口水- 牙膏- 牙刷 - 刷牙杯
C.
刷牙杯- 漱口水- 牙膏- 牙刷
D.
牙刷- 刷牙杯-漱口水- 牙膏
【单选题】It’s necessary to be prepared for a job interview. the answers ready will be of great help.
A.
To have had
B.
Having had
C.
Have
D.
Having
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