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【判断题】
两个子系统串联时,组合系统的传递函数阵等于子系统传递函数阵的乘积,且子系统传递函数阵的顺序可以交换。A.
正确
B.
错误
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举一反三
【单选题】Only after his friend came _______.
A.
did the computer repaired
B.
was repaired the computer
C.
was the computer repaired
D.
the computer was repaired
【单选题】Only after his homework to watch TV.
A.
he has finished; is he allowed
B.
has he finished; is he allowed
C.
he has finished; he is allowed
D.
has he finished; he is allowed
【单选题】Only after his death _______ considered correct.
A.
his theory was
B.
was his theory
C.
did his theory
D.
had his theory
【简答题】按不对称碳原子上取代基R的排列方式,可得到三种空间立构,即()、()、()。
【多选题】课程中介绍到诠释过程，关于诠释过程描述正确的是（ ）？
A.
不断变换视角的过程
B.
讨论过程是一个无问题指向性的过程
C.
把要解决的问题变为供讨论的话题
D.
是一个动态的过程
【单选题】产生软件危机的原因主要与哪两个方面的问题有关?( )
A.
软件在计算机中很难识别，存在磁盘中也看不到
B.
软件设计对人的智商要求很高，也要求很高的资金投入
C.
软件产品本身的特点，开发和维护过程中用的方法不正确
D.
软件很难理解，硬件也很复杂
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