Which of the following is the first used local anesthetics () A: Cocaine B: Lidocaine C: Bupivacaine D: Mepivacaine E: Ropivacaine

Among the<br/>following local anesthetics, which one can be used to treat<br/>ventricular arrhythmias? () A: Bupivacaine B: Lidocaine C: Tetracaine D: Procaine E: Ropivacaine

The objective of preanesthetic medication is () A: reduce the patients 'anxiety B: strengthening the anesthetic effect C: Reduce the use of anaesthetic D: Prevent adverse reactions E: prevention of anaphylaxis with anesthetics

Most people are afraid of being operated on ______. A: unless it is an emergency operation B: in spite of improvement in modern surgery C: because they think modern drugs are dangerous D: because they do not believe they need anesthetics

Most of people are afraid of being operated on _______. A: in spite of improvements in modem surgery B: because they think modern drugs are dangerous C: because they do not believe they need anesthetics D: unless it is an emergency operation

Neurotrophic effects() A: refer<br/>to the influence of the nerve on the functional activities of the<br/>dominating tissue B: achieved by releasing the neurotransmitter or neuromodulator through<br/>the nerve endings C: rely<br/>on the regular release of neurotrophic factors D: can<br/>be blocked by continuous application of local anesthetics E: It is<br/>not easy to detect, and it can be clearly displayed after cutting off<br/>the nerve