These differences in grammar, pronunciation, spelling and vocabulary are not important, however.

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• written english is more or less the s in both Britain and America t there are some spelling differewritten english is more or less the （s ）in both Britain and America （t ） there are some spelling differences.For （e ）,centre ,colour and travelled are （s ） as center,color and traveled in American English .But people from the two （c ）can understand each other （e ）.There are only a very small number of differences in grammar .The most important difference
• 英语翻译Have or have got?There are a few differences in grammar,too.The British say Have you got...while Americans prefer Do you have...An American might say My friend just arrived,but a British person would say My friend has just arrived.Prepositions,too,can be different：compare on the team,on the weekend(American) with in the team,at the weekend(British).Colour or color?The other two areas in which the two varieties differ are spelling and pronunciation
• 英语翻译Have or have got?There are a few differences in grammar,too.The British say Have you got...while Americans prefer Do you have...An American might say My friend just arrived,but a British person would say My friend has just arrived.Prepositions,too,can be different：compare on the team,on the weekend(American) with in the team,at the weekend(British).Colour or color?The other two areas in which the two varieties differ are spelling and pronunciation
• These differences in grammar, pronunciation, spelling and vocabulary are not important, however.
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• 已知普通小麦体细胞染色体数目为42,染色体组数为6,一个染色体组中的染色体数和生殖细胞染色体组应该是