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【单选题】
将铂电极放置在 KOH 溶液中,然后分别向两极通入 CH 4 和 O 2 ,即产生电流,称为甲烷燃料电池。下列有关说法中错误的是 ( )
A.
. CH 4 在负极上反应, O 2 在正极上反应
B.
. 放电过程中电解质溶液的碱性减弱
C.
. 此电池属于环境友好型电池
D.
. 此电池中化学能 100% 转化为电能
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【单选题】听力原文:Who was responsible for filing those forms? (A) I am very responsible. (B) I think Jim was. (C) You can get the forms from the supply room. (39)
A.
B.
C.
【单选题】Who was responsible for this traffic accident?
A.
One of the car drivers.
B.
One of the truck drivers.
C.
Both of the car drivers.
D.
Neither of the car drivers.
【简答题】According to Mr. Peterson, who was responsible for this matter? It was most probably caused by______.
【判断题】在西方文化中,男士地位仍较女士优越,女士仍有受歧视现象。
A.
正确
B.
错误
【判断题】信息传输速率R与码元传输速率N的关系为R=Nlog2N。( )
A.
正确
B.
错误
【单选题】According to the passage, who was responsible for designing houses in eighteenth-century North America?
A.
Professional architects.
B.
Customers.
C.
Interior decorators.
D.
Carpenters.
【单选题】Who was responsible for appointing Karen to the board?
A.
http://leicloud.ulearning.cn/course/mediacontent/20130911/lesson-04/audio/toeic_ch03_02_02_04a.mp3
B.
http://leicloud.ulearning.cn/course/mediacontent/20130911/lesson-04/audio/toeic_ch03_02_02_04b.mp3
C.
http://leicloud.ulearning.cn/course/mediacontent/20130911/lesson-04/audio/toeic_ch03_02_02_04c.mp3
【单选题】According to the passage, who was responsible for designing houses in eighteenth-century North America?
A.
Professional architects.
B.
Customers.
C.
Carpenters.
D.
Interior decorators.
【判断题】信息传输速率R与码元传输速率N的关系为R=Nlog2N。
A.
正确
B.
错误
【单选题】Who was responsible for the building of the famous cathedral in the city?
A.
The Roman colonisers.
B.
The Saxons.
C.
The Normans.
D.
Alfred the Great.
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