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【多选题】
收发国家秘密载体，应当履行（）手续。A.
清点
B.
登记
C.
编号
D.
签收
手机使用
分享
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反馈参考答案：
举一反三
【单选题】A(n) ____ folder is similar to a drop box; it can hold files and folders that you want to share with other people on your network.
A.
Offline
B.
Online
C.
Private
D.
Public
【单选题】The production can be ______ for several months by the strike.
A.
hold in
B.
hold up
C.
hold on
D.
hold with
【单选题】Folders can hold other folders called ____.
A.
mini-folders
B.
subfolders
C.
objects
D.
tiered-folders
【单选题】Don’t worry. We can stay here as long as our supplies .
A.
hold up
B.
hold out
C.
hold on
D.
hold back
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