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【单选题】
100 Base-t标准定义了3种物理层规范,以支持不同的物理介质。其中,100 Base-T4采用【】A.
两对5类UTP
B.
两对6类UTP
C.
四对3、4或5类UTP
D.
光缆
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【单选题】Following an overhaul of a crosshead type diesel engine, the engine is jacked over with the turning gear as part of the pre-start procedure, which of the listed pre-start procedures should be carried ...
A.
Ensure proper cylinder lube oil flow
B.
Open all air space drain cocks
C.
Open all indicator valves
D.
all of the above
【简答题】纳税人购买国债、金融债券所取得的利息收入免征企业所得税。（ ）
【单选题】Recent study shows that regular review leads to ______ performance on tests.
A.
improve
B.
improves
C.
improved
D.
improvement
【单选题】_____ recent survey shows that the number of Non-English speaking families in US is on ____ increase this year .
A.
The, the
B.
A, an
C.
A, the
D.
The, an
【简答题】纳税人购买国债、金融债券所取得的利息收入免征企业所得税。 （ ）
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