A circuit diagram is useful when testing a circuit and for understanding how it works.
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Drawing circuit diagrams is difficult and takes a lot of practice to draw neat, clear diagrams.
A. 对
B. 错
Output Transducer converts the electrical signal to the controlled quantity.
A. 对
B. 错
成人发生气道异物梗阻时,若身边没人,意识清楚的情况下,应立即向他人求救,采用海姆立克急救法协助其排除异物。
A. 对
B. 错
海姆立克急救法适用于是运用于呼吸道异物导致窒息的快速急救方法。
A. 对
B. 错