第21题: [单项选择]胃肠道手术病人术前准备,不正确的为 A. 手术前1~2d开始进流质饮食 B. 手术前8h开始禁食,4h开始禁水 C. 一般手术术前1d肥皂水灌肠 D. 必要时可以行胃肠减压 E. 结、直肠手术应行清洁灌肠 参考答案:B 答案解析:[解题思路] 胃肠道手术术前准备包括:手术前1~2d开始进流质饮食,必要时用胃肠减压,一般手术可在术前1d肥皂水灌肠,结、直肠手术应在术前口服肠道制菌药物并清洁灌肠。要求术前12h开始禁食,4h开始禁
第29题: [单项选择]A. He was furious with his boss. B. He was always late to work. C. His daughter was sick and that made him late for work. D. He prepared a financial report incorrectly. 参考答案:D 答案解析:[解析] M: I was so disappointed to hear that Jim lost his job. I know that his daughter was sick l
第37题: [单项选择]关于内存变量的调用,下列说法中正确的是( )。 A. 私有变量只能被本层模块程序调用 B. 私有变量能被本层模块和下层模块程序调用 C. 局部变量不能被本层模块程序调用 D. 局部变量能被本层模块和下层模块程序调用 参考答案:B 答案解析:[解析] 在程序中直接使用(没有通过PUBLIC和LOCAL命令事先声明)而由系统自动隐含建立的变量都是私有变量。私有变量的作用域是建立它的模块及其下属的各层模块。局部变量只能在建立它的模块中使用,不