单项选择题
下面哪句是对“能熟练运用英语和普通话优先”的最佳翻译（）。
A.Proficient in English and Mandarin a must. B.Proficient in English and Mandarin required. C.Proficient in English and Mandarin essential. D.Proficient in English and Mandarin is preferred.
判断题 Sociolinguistics is one of the branches of applied linguistics.
判断题 Translation strategies and translation techniques are different concepts in translation.
判断题 Experts share similar understandings over the standards of translation.
