TD频谱分析仪信号分析能力包括:()
A.具备频率域信号分析功能;
B.具备时域信号分析功能;
C.具备码域信号分析功能;
D.以上信号分析能力都具备。
参考答案:D
In 1965, a new Voting Rights Bill became law, ________all black people had the right to vote from then on.
A.by which
B.that
C.by what
D.which
制氢站补水泵数量为()只。
A.1
B.2
C.3
D.4