Ultrasonic sounds produce pulsed signals______various defects in metal can be de

游客2023-11-20 18

问题 Ultrasonic sounds produce pulsed signals______various defects in metal can be detected.

选项 A、for which
B、of which
C、as a result of which
D、by means of which

答案 D

解析

转载请注明原文地址:https://tihaiku.com/zcyy/3203460.html

相关试题推荐

随机试题

最新回复(0)

Weknowourfriendsbytheirdefects__bytheirmerits.A、thanB、intheplaceof