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单选题
However, since methanol-fueled vehicles could be designed to be much more（）than gasoline clone vehicles fueled with methanol, they would need comparatively less fuel.
A
effective
B
efficient
C
sufficient
D
supplement
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阅读以上短文，回答191-193题。
第41题答案是__________A.submit
B.expand
C.release
D.organize
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B.deliver
C.cope
D.address
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B.dilemma
C.trouble
D.damage
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单选题His decision was ______, since he could not see the action from where he was standing.A
arbitraryB
ordinaryC
casualD
accurate
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The securing of cargo on flats and trailers must be adequate to withstand road motions onlyB
The movements experienced by road borne cargo are the same as the movements of a ship at seaC
The generally recommended lash angle is no greater than 45 degrees relative to the deck in any directionD
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The DHCP server is not working correctlyC
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单选题What is the purpose of an explicit "deny any" statement at the end of an ACL？（）A
none，since it is implicitB
to enable Cisco IOS IPS to work properly；however，it is the deny all traffic entry that is actually requiredC
to enable Cisco IOS Firewall to work properly；however，it is the deny all traffic entry that is actually requiredD
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单选题Centrifugal pumps, however, can be designed with a number of impellers （） to attain a large amount of liquid.A
in seriesB
in parallelC
assembledD
together
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incorrect DSL network redistributionB
incorrect static host route configurationC
incorrect static customer route configurationD
incorrect default static route configuration on the end user
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have been steadily increasingB
has been steadily increasedC
has been steadily increasingD
have been steadily increased
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单选题Although recent years have seen（）reductions in noxious pollutants from individual motor vehicles, the number of such vehicles has been steadily increasing.A
substantialB
substanceC
submitD
subjective
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单选题Even though she didn't want her son to leave home, since he was 21, there was nothing she could do to _____ itA
hinderB
preventC
ceaseD
resist
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