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【单选题】
自动闭塞区段，列车头部越过出站信号机的超长列车发车时，凭证为（）。A.
B.
调度命令
C.
绿色许可证
D.
红色许可证
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【简答题】在Python类体中,____________是一个类方法,在创建对象时调用,返回当前对象的一个实例,一般无须重载该方法。_______________方法即构造函数(构造方法),用于执行类的实例的初始化工作,在对象创建后调用,初始化当前对象的实例,无返回值。_______________方法即析构函数,用于实现销毁类的实例所需的操作,例如释放对象占用的非托管资源。
【简答题】A．employees B．employers C．employee D．employer
【简答题】关于“波罗蜜多”解释恰当的是（ ）
【简答题】Python类体中,____方法即析构函数,用于实现销毁类的实例所需的操作,如释放对象占用的非托管资源。
【单选题】What will be the astronauts' top priorities?
A.
Entering the orbit and landing on the moon.
B.
Landing and walking on the moon surface.
C.
Exploration and researches into the moon composition.
D.
Exploration and construction of a moon base.
【单选题】听力原文：Employer: Well, take a seat, please. Job seeker: Thanks. Employer: Well, what kind of experience have you got for the job? Job seeker: I've been a computer programmer for more than two years. Emp...
A.
He can't get along well with his co-workers.
B.
He wants to widen his experience in the field of computer technology.
C.
He can't be promoted in that company.
D.
He is not satisfied with the salary there.
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