第7题: [单项选择]General requirements for a vessel’s radiotelephone station log are that(). A. logs must be kept in an orderly manner B. erasures are not allowed C. it must identify the vessel's name and official number D. All of the above 参考答案:D
第8题: [单项选择]Birthday attacks are used against which of the following?() A. digital signatures B. symmetric ciphering C. hashalgoritms D. asymmetric ciphering E. digital certificates 参考答案:C
第14题: [单项选择]下列哪项描述是错误的() A. 甲亢术前检查包括颈部透视或摄片、心脏检查、声带功能检查、基础代谢率检查 B. 甲亢症状基本控制是指:情绪稳定,睡眠好转,体重增加,脉率稳定在每分钟90次以下,基础代谢率+20%以下 C. 甲亢术前用药方法有复方碘、硫氧嘧啶类药物加复方碘、复方碘加普萘洛尔、普萘洛尔单用 D. 甲亢术前服碘的机制是能减少甲状腺素的合成 E. 甲状腺术最危急的并发症是呼吸困难和窒息 参考答案:D