第2题: [单项选择]Many a professor looking forward to visiting Korea at present. A. is B. are C. was D. were 参考答案:A 答案解析:[解析] “many a+单数名词”作主语,谓语动词用单数形式,表示“许多”。例如:Many a citizen was killed in this slaughter.(许多百姓在这场大屠杀中被害
第27题: [单项选择]口对口人工呼吸的最大缺点是() A. 潮气量不稳定 B. 吸入氧浓度不高 C. 易导致交叉感染 D. 受伦理和道德因素约束 E. 易发生漏气 参考答案:B
第28题: [单项选择]Antipsyehotie medications may cause which of the following adverse effects A. Increased production of insulin. B. Lower seizure threshold. C. Increased coagulation time. D. Increased risk of heart failure. 参考答案:B 答案解析:Antipsychotic medications exert an effect on brain neurotransmitters that lowers the seizure thresho