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【单选题】
在 OSI 参考模型中,第 N 层与它之上的第 N + 1 层的关系是( )。A.
第 N 层与第 N ＋ 1 层相互没有影响
B.
第 N 层为第 N ＋ 1 层提供服务
C.
第 N ＋ 1 层将从第 N 层接收的报文添加一个报头
D.
第 N 层使用第 N ＋ 1 层提供的服务
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举一反三
【单选题】--- _______ can a tiger weigh, do you know? ---Yes, I know that a big one can weigh over 300 kilos.
A.
How many
B.
How heavy
C.
How much
D.
What
【单选题】“How much do you ____?” means “ What ‘s your _____ ?”
A.
weigh; weigh
B.
weigh; weight
C.
weight; weight
【单选题】I weigh 120 pounds and you weigh 120 pounds. We are ______ weight.
A.
the same heavy
B.
as heavy as
C.
as heavy
D.
of the same
【单选题】-How much does he weigh? -__________________________________.
A.
He weigh 45 kilograms.
B.
He weighs 45 kilograms.
【判断题】If it is not clearly stipulated in the contract whether the gross weight or net weight gross weigh shall be calculated according to the usual practice
A.
正确
B.
错误
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