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【单选题】
1991年，美国三家公司组成了‘商用Internet协会’（CommercialInternetExchangeAssociation），宣布用户可以把它们的Internet子网用于任何的商业用途，这标志了（ ）。A.
Internet开始进入商业领域
B.
Internet的商业化彻底完成
C.
Internet已完全替代了NSFNET
D.
Internet已完全替代了ARPNET
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举一反三
【简答题】A．Because he wanted to make more money. B．Because he was fired by the school because he sold pens to his students. C．Because he was proud of his repair skills. D．Because he felt the pens he sold neede...
【单选题】He was fired because the boss thinks he was ______ in his company.
A.
important
B.
more important
C.
the less important
D.
the least important
【单选题】GPC谱图可以看成以分子量的对数值为变量的微分重量分布曲线。假定仪器无扩展效应,且聚合物试样的谱图对称,则可以用( )来描述。
A.
对数函数
B.
指数函数
C.
正态分布函数
D.
三角函数
【单选题】GPC谱图可以看成以分子量的对数值为变量的微分重量分布曲线。假定仪器无扩展效应，且聚合物试样的谱图对称，则可以用（）来描述。
A.
正态分布函数
B.
三角函数
C.
对数函数
D.
指数函数
【单选题】He was fired by his boss last week, because he ______ his duty.
A.
neglected
B.
obeyed
C.
insured
D.
ignored
【单选题】Matthew Cusick______.
A.
believes he was fired illegally
B.
says he was not H1V positive
C.
understands why he had to be fired
D.
lives in San Francisco
【单选题】He was asked to leave the company; ________, he was fired. [ ]
A.
as a result
B.
in other words
C.
in a word
D.
in another word
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