[填空题]上皮细胞基底面的特殊结构有（）、（）和（）。

[单项选择]患者，男性，28岁，无意中发现甲状腺肿块15天，近3天来似有增大。^99m锝扫描示“冷结节”，硒甲状腺扫描示冷结节处有放射性浓聚，甲状腺B超结果为实质性肿块。最可能的诊断是
A. 单纯性甲状腺肿
B. 青春期甲状腺肿
C. 甲状腺腺瘤并囊内出血
D. 结节性甲状腺肿
E. 甲状腺癌

[单选题]1 "触电急救，胸外心脏按压频率应保持在（　　）次/min。
A.60
B.80
C.100
D.120"

[单项选择]If it becomes necessary to cutout an individual cylinder of a large, low-speed, main propulsion diesel engine, the fuel to that cylinder should be secured and its （）
A. fuel pump should be removed and all connections blanked off
B. cylinder oil feed rate should be increased slightly above that used at normal sea speed
C. cylinder oil feed rate should be reduced
D. cylinder oil feed rate should be increased to the maximum flow capable of the metering pump

[单选题]常态点灯的出站色灯信号机显示一个绿色灯光和一个黄色灯光—准许列车由车站出发,表示运行前方有( ) 闭塞分区空闲。J470
A.一个
B.两个
C.三个

[单项选择]下列属于企业法人的是（）。
A. 中国通信建设集团公司
B. 中国通信建设集团北京分公司
C. 中国建设银行河北分行
D. 中国人民银行天津支行

[名词解释]征税协约

[简答题]简要说明植物实验室检测的主要方法。

[单项选择]

Today, moving and changing are as much a part of a modern business way of life as they are a part of the native American’s or the early pioneer’s way of life. And the trend is toward even greater mobility, particularly within the management sector of American business.
In the early fifties, only eight or nine out of a hundred young men changed their jobs within the first three years with the company. In the past few years, almost thirty-five percent of the college-graduated work force changed jobs within the same period. These people want to intensify their management training. Since most jobs take only a year to a year and a half to master, in order to continue learning, they have to make a job change. Even company presidents tend to be seen as mobile specialists, staying with one company an average of only five years.
Company presidents in the United States today tend to be young men who begin their careers with educational backgrounds in engineer
A. stage
B. condition
C. experience
D. setting