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【简答题】
某连续控制器设计为 试用双线形变换法、前向差分法、后向差分法分别求取数字控制器D(Z),并分别写出3种方法对应的递推控制算法。
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举一反三
【单选题】一 ? - I have a bad cold.
A.
What have you done
B.
What do you do
C.
What's the matter with you
【单选题】With more people on the Web, ______.
A.
new surfing software needs to be developed
B.
telephone will become more widely used
C.
the Internet will become more widely used
D.
the Internet will become a status symbol to evaluate people
【简答题】今年は去年( )( )暖かいです。
【简答题】– Hello, may I speak to John? – ________________________ A: You are wanted on the telephone. B; Can I leave a message for him? C; Just a second, please.
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