Web不定冠词 (a,an)的用法. 不定冠词放在名词前面，主要泛指一类人、事物或同类事物中的某一个。. 不定冠词有a和an两种形式。. a用于以辅音音素开头的单词前，an用于以元音音素 … WebUsing "An" and "A". Writers are sometimes unsure whether to use "an" or "a," particularly with abbreviations. (The words "an" and "a" are known as articles .) The sound of a word's first letter determines whether to use "an" or "a." If the word starts with a vowel sound, you should use "an." If it starts with a consonant sound, you should use "a."

不定冠词(a,an)的用法 - 知乎 - 知乎专栏

WebEnglish grammar exercises: articles exercises. Elementary and intermediate level. Indefinite articles in English WebAn definition: The form of a used before words beginning with a vowel sound. intein yeast

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Web不定冠词a和an的用法 请点击输入图片描述（最多18字） 不定冠词包括a和an，用在英语单数可数名词前面，很多同学搞不清楚，什么时候用a，什么时候用an ，今天跟着老师一起 … WebThe AN-2 airplane, a firstling of the O.K. Antonov Design Bureau, got off the ground on August 31, 1947. The first flight was made by test pilot Pavel Volodin. Owing to high flight performance, structural reliability and wide transport capabilities, the AN-2 airplane has become an indispensable worker on regional airlines and in agriculture. WebAn Post Tracking Details. TrackingMore is a third party parcel tracking tool (also known as multi-carrier tracking tool) which supports online parcel tracking of worldwide 477 express and postal couriers. You can enter a tracking number, air waybill (AWB) number or reference number to track & trace a single international or domestic package ... intej peru work and travel