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【简答题】
一般,在DNS服务器之间的查询请求属于( )查询,在DNS客户端与本地DNS服务器之间的查询属于( )查询。
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举一反三
【单选题】Can I speak to Mr. Tang, please?（）
A.
Who are you?
B.
I'm Wang.
C.
Speaking.
D.
Are you John?
【单选题】- Can I speak to Mr. Rose? - _________ Can I take a message for him?
A.
This is he.
B.
I am afraid he is not in.
C.
Who are you?
D.
Sorry. Do you know him?
【单选题】Can I speak to Mr. John?
A.
Hold on, please.
B.
Yes, I’m John here.
C.
Sorry, he isn’t here.
D.
Of course, but who are you?
【单选题】— Can I speak to Mr Wang, please? — . [ ]
A.
Who are you?
B.
I'm Mr Wang.
C.
Speaking.
D.
Are you John?
【单选题】—Can I speak to Mr. Wang, please? —
A.
无需回答
B.
Who are you ?.I’m Wang .
C.
Speaking
D.
Are you john?
【单选题】—Can I speak to Mr. Black? —I am sorry,but he ________New York for an important international meeting． [ ]
A.
has been to
B.
has gone to
C.
has been in
D.
has gone in
【简答题】--Can I speak to Mr Wang? --Sorry, he' s out. Can I _____ a message? A．leave B．take C．ask for D．want
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