子电路故障检修中使用示波器测量电路的各点信号波形发现故障的方法是()。
参考答案:示波器测量法
Have you ever listened to the song Yesterday once more, _____ singer died in her early years? [ ]
A. its
B. it's
C. whose
D. which
给车身涂好上光蜡,要及时抛亮。