Windows操作系统中Java编译器程序的文件名是（）。
A. javac.exe
B. java.exe
C. javac.class
D. jar.exe
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As a college student, how can you improve your leadership on campus?
A. To face challenges
B. To grow from mistakes
C. To stay curious
D. To take part in more activities
The Struggle Lens View interprets a new portrait of leadership. They are respectively ___________.
A. Struggle and leadeship are interwined.
B. Struggle is an opportunity for leaders to realize their full potential.
C. Struggle is regarded as an intrinstic aspect of leadership.
D. Struggle won't influence leadership.
What is the meaning of "ingrained"?
A. To become deep-rooted.
B. To be feasible
C. To be flexible
D. to be forgettable
系统开环传递函数:4/(s(s+1+2a)), 绘制以a为变量的根轨迹时,其等效开环传递函数为()。
A. as/(s^2+s+4)
B. a/(s^2+s)
C. as/(s^2+4)
D. a/(s+4)
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