[单选题]保障出港航班最晚于航班公布起飞时间前（）分钟到达登机口。
A.40
B.30
C.50
D.20

[判断题]调车人员显示信号后，未听到司机鸣笛回示或超过规定速度时，应显示停车信号。
A.正确
B.错误

[单项选择]肺淤血最早出现的可靠X线征像是
A. 肺纹理增加及模糊
B. 上肺静脉扩张，与下肺野血管比例改变
C. 肺水肿
D. 胸腔积液
E. KerleyB线

[单选题]客运企业应当保障安全生产投入，依据有关规定，按照不低于上年度实际营业收入()的比例提取、设立安全生产专项资金，建立独立的台账，专款专用。
A.0.5%
B.1.5%
C.2.0%
D.2.5%

[单项选择]高某因与伊某的母亲有仇，故意致 15岁的伊某重伤。在法院开庭审理该案件时，伊某的母亲请求法庭判决被告人赔偿伊某医疗费等人民币3200元。请问，伊某的母亲处于何种诉讼地位( )
A. 诉讼参与人和法定代理人
B. 被害人
C. 诉讼代理人
D. 辩护人

[填空题]在作业过程中，⼯作监护⼈和⼯作执⾏⼈都应<--NRC-->认真监 护⼯作组员的安全。

[判断题]用电功率因数的高低，不会影响到供电的电压质量。
A.正确
B.错误

[判断题]电动工具的开关应设在监护人伸手可及的地方。
A.正确
B.错误

[填空题]A teacher is someone who communicates information or skill SO that someone else may learn．Parents are the (51) teachers．Just by living with their child and (52) their every day activities with him，they teach him their language，their values and their man— ners．Information and skills difficult to teach (53) family living are taught in a school by a person (54) special occupation is teaching．
Before 1900 it (55) widely assumed that a man was qualified to teach if he could read and write and (56) qualified if he knew arithmetic．With modest (57) like these，it is no (58) that teachers had low salaries and little prestige．Literature and history frequently portray teachers (59) fools and ignoramuses．
By the late 1 9th century，there were (60) that the status of teachers was slowly (61) .Great educators such as Mann and Henry Barnard，and innovative thinkers such as Dewey and Parker began to command a (62)