Therefore the regular expression A*B will match the strings AB, AAB, AAAB, or any other string starting with an A and ending with a single B.

因此，正则表达式 A*B 将与字符串 AB 、 AAB 、 AAAB 或任何其它以 A 开头并以单个 B 为结尾的字符串相匹配。

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A new method for separating and purifying p-AAB(p-aminoazobenzene)by dry-column chromatography is developed.

提出了一种干柱层析法分离提纯试剂对氨基偶氮苯的新方法。

youdao

AAB International: We pray for global customers, all employees a happy New Year and good health!

AAB国际：敬祝全球客户、全体员工春节快乐，身体安康！

youdao

Although A-level grades between two applicants might appear to be the same - such as grades AAB - this does not show the range of subjects they have taken.

BBC: 'Unfair' university admissions claim

This year has seen changes to the admissions process - with universities allowed to recruit an unlimited number of students with AAB A-level grades or better.

BBC: Few students 'trade up' university places

Last year there was no limit on places for applicants who achieved AAB grades - and while it meant expansion in some universities, it meant unfilled places in others.

BBC: University applications 'not recovering' at deadline