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【判断题】
组合逻辑电路的设计,就是根据给定的逻辑要求,求出最合理的实现该逻辑功能的逻辑图。
A.
正确
B.
错误
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举一反三
【单选题】下列各醇,最容易发生分子内脱水反应的是( )。
A.
B.
C.
D.
D
【简答题】简述模拟通信系统的优缺点。
【多选题】下列是复制保真性的机制:
A.
DNA拓扑异构酶的异构作用
B.
端粒酶有反转录的作用
C.
DNA聚合酶的校读功能
D.
DNA聚合酶Ⅲ有修复功能
E.
半保留复制
【单选题】牵拉肩胛骨向前的肌是
A.
前锯肌
B.
背阔肌
C.
斜方肌
D.
肩胛下肌
E.
胸大肌
【单选题】下列是复制保真性的机制的是
A.
DNA拓扑异构酶的异构作用
B.
半保留复制
C.
DNA聚合酶l有校读作用
D.
DNA聚合酶Ⅲ有修复作用
【单选题】牵拉肩胛骨向前的肌是()
A.
菱形肌
B.
胸大肌
C.
肩胛下肌
D.
前斜角肌
E.
前锯肌
【多选题】What are two types of research?
A.
One research
B.
Primary research
C.
Two research
D.
Secondary research
【多选题】Which of the following statement is correct?
A.
Interest is expressed by maintaining eye contact witht the speaker, smiling, and nodding.
B.
Lack of interest or boredom is indicated by glancing repeatedly at your watch or staring at the ceiling or floor or out the window when the person is speaking.
C.
People of Indonesia smile a great deal, so Indonesia has been called "The Land of Smiles".
D.
The OK sign, with the thumb and forefinger joined to form a circle, is a positive gesture in US, although in Brazil it is considered obscene.
E.
Suspiciousness is indicated by making fisted gestures or crossing your legs.
【多选题】What are the two types of IT communication?
A.
Phone
B.
Networked system.
C.
wireless
D.
Envelope
【单选题】产品生命周期在不同的阶段有不同的特征。成长期的特征是( )。
A.
产品刚进入市场,尚未被顾客接受,销售额增长较慢
B.
用户对产品已经有所熟悉,产品设计及工艺已基本定型,销售额迅速增长
C.
生产批量大、成本低,市场竞争激烈,市场需求趋于饱和,销售额增长较慢
D.
产品老化,销量下降,利润下降,价格下跌
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