【单选题】Waardenburg syndrome is an autosomal dominant disorder in which patients may exhibit a variety of clinical features, including patches of prematurely grey hair, white eyelashes, a broad nasal root, an...
【单选题】听力原文:Should I have the article finished today or could I have more time? (A) He needs to be done by tomorrow. (B) We gave it to the writer. (C) I will ask the director for an extension. (35)