虚警是指没有信号仅有噪声的,()被误认为信号的事件。
参考答案:噪声电平超过门限值
_________ that the government can lead them out of the financial crisis, people are optimistic
about the future of the country.
A.Convincing
B.Convinced
C.To convince
D.Having convinced
总产量处于递增阶段时,边际产量:()
A.递减
B.递增
C.为正
D.上述任何一种