关于声现象，下列说法正确的是（）

阅读《邹忌讽齐王纳谏》，回答后面问题。
        邹忌修八尺有余，而形貌昳丽。朝服衣冠，窥镜，谓其妻曰：“我孰与城北徐公美？”其妻曰：“君美甚，徐公何能及君也？”城北徐公，齐国之美丽者也。忌不自信，而复问其妾曰：“吾孰与徐公美？”妾曰：“徐公何能及君也？”旦日，客从外来，与坐谈，问之客曰：“吾与徐公孰美？”客曰：“徐公不若君之美也。”明日，徐公来，孰视之，自以为不如；窥镜而自视，又弗如远甚。暮寝而思之，曰：“吾妻之美我者，私我也；妾之美我者，畏我也；客之美我者，欲有求于我也。”
        于是入朝见威王，曰：“臣诚知不如徐公美。臣之妻私臣，臣之妾畏臣，臣之客欲有求于臣，皆以美于徐公。今齐地方千里，百二十城，宫妇左右莫不私王，朝廷之臣莫不畏王，四境之内莫不有求于王：由此观之，王之蔽甚矣。”
        王曰：“善。”乃下令：“群臣吏民能面刺寡人之过者，受上赏；上书谏寡人者，受中赏；能谤讥于市朝，闻寡人之耳者，受下赏。”令初下，群臣进谏，门庭若市；数月之后，时时而间进；期年之后，虽欲言，无可进者。
        燕、赵、韩、魏闻之，皆朝于齐,此所谓战胜于朝廷。

    Years ago I was hiking (徒步旅行) in the Himalayas and had made the mistake of changing a large amount of money into the local currency(货币). As I walked through the villages of the Annapurnas, it soon became 1that the people were too poor to 2 even the simplest 3. They had nothing. This meant that it was no use carrying the wad(捆) of 4 in my pack and I was a virtual(虚拟的) walking 5 compared to the local people. I grew to 6 the money and it was 7 to have it in my bag. This led to a remarkable experience that 8 me deeply and its 9 has never left me.

    On this particular day I was left behind by my fellow hikers and found myself in a valley. As I made myself down, I noticed a young girl of around 13 10 some sheep. Like so many of the children of the amazing Nepalese people, she was very beautiful. I couldn't 11 looking at her and she looked at me. As I approached her she suddenly rushed 12 to me, and without a 13, handed me a flower. She 14 at me for a tiny moment and then she ran away. The spirit in this lovely child had responded to something she saw in me and her first 15 was to find something to 16 . Due to her 17 , there was nothing she had 18 a single flower. The 19 of my bag was never heavier than at this moment and I had just received one of the most valuable 20 I have ever had in my life.