未知题型 由于天气、突发事件、空中交通管制、安检以及旅客等非承运人原因，造成航班在始发地出港延误或者取消，承运人不应当协助旅客安排餐食和住宿，费用由旅客自理（）

单项选择题 Given the class declaration below, what expression can be used to fill in the blank to return the size variable defined in the Bottle class, printing 14 at runtime? package baby; final public class Bottle { final private int size = 14; final protected class Insert { private final int size = 25; public final int getSize() { return ____________________; } } final Insert insert = new Insert(); final public static void main(String[] feed) { System.out.print(new Bottle().insert.getSize()); } } A、Bottle.this.sizeB、this.sizeC、this.Bottle.sizeD、The code does not compile, regardless of what is placed in the blank.

单项选择题 为减少话外音的影响有什么有效的方法（）