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【单选题】
为了使有差错的物理链路变成无差错的数据链路,数据链路层采用()。
A.
差错控制和流量控制
B.
差错控制、冲突检测和数据加密
C.
冲突检测
D.
数据加密
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参考答案:
举一反三
【判断题】Cancer is a medical condition in which someone has too much sugar in their blood.
A.
正确
B.
错误
【简答题】我既有创造力又努力工作。
【单选题】If national health insurance would not cure the problems of the American healthcare system, what, then, is responsible for them? Suspicion falls heavily on hospitals, which make up the largest compone...
A.
is working smoothly
B.
is the best system in the world
C.
is not working efficiently
D.
in on the point of collapses
【单选题】选择与句中画线部分意思相同或相近的词或短语。 There is a wind today. [     ]
A.
It's very windy
B.
It is cloudy
C.
It is windy
D.
It will be windy
【单选题】It's dangerous to go out in a small boat when the wind____________ (blow) very hard. A wise sailor ________ (wait) until the wind _____________ (die) down.
A.
blows     waits   dies
B.
blows     will wait      dies
C.
is blowing      will wait         dies
D.
is blowing    waits    is dying
【简答题】按照按要求改写下列句子,每空限填一词。 There is a strong wind today. It's very ______ today.
【单选题】Cancer Research Campaign is most possibly a ______.
A.
medical journal
B.
research institute
C.
private company
D.
governmental agency
【多选题】顾客满意度调查的目标有
A.
确定导致顾客满意的关键价值因素
B.
评估公司的满意度指标及主要竞争者的满意度指标
C.
判断轻重缓急,采取正确行动
D.
控制全过程
【多选题】员工满意度调查的目的有()
A.
诊断公司潜在的问题。
B.
找出出现问题的原因。
C.
评估组织变化和企业政策对员工的影响。
D.
培养员工的企业认同感和归属感。
【单选题】It's very hot. There ______ no wind.
A.
am
B.
is
C.
are
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