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【判断题】
八进制数字传输系统传码率为100B，传信率可达800bps。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】—Who is the young man in the air force uniform in the picture? — My brother. He has _____ the army for two years. [ ]
A.
joined
B.
left
C.
been in
D.
come to
【单选题】The passage says 'He digs for it'. It is because ______.
A.
his ticket is deep in mud
B.
he loses his ticket
C.
he forgets where his ticket is
D.
it is hard to take out his ticket
【单选题】A Frenchman who lost his arms and legs successfully swam across the Channel, a challenge he _____ for two years. [ ]
A.
has been preparing
B.
had been preparing
C.
has prepared
D.
prepares
【单选题】在Word2010中,不能选取全部文档的操作是____。
A.
鼠标移动到文档左侧,鼠标指针变成一个指向右边的箭头时,三击鼠标左键
B.
按Ctrl+A
C.
在文档任意处双击鼠标
D.
先在文档开头用拖运操作选取一段文字,然后在文档尾按住Shift键再单击左键
【单选题】在Word 2010中,不能选取全部文本的操作是( )
A.
执行“开始”选项卡的“选择”下拉菜单中“全选”命令
B.
按Ctrl+ A组合键
C.
在文档任意处三击鼠标
D.
按住Ctrl键后单击选定栏
【单选题】在Word2010中,不能选取全部文档的操作是( )。
A.
执行编辑菜单中的全选命令
B.
按Ctrl+A
C.
在文档任意处双击鼠标
D.
先在文档开头用拖运操作选取一段文字,然后在文档尾按住Shift键再单击左键
【单选题】— “Who is he?” — “I don’t know. You may ask Mary ___________ (who he is, who is he).”
A.
who he is
B.
who is he
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