【单选题】Choose the word or phrase which best completes each sentence. l. You cannot _____ ignorance as your excuse; you should have known what was happening all along. A. plead B. refer to C. defend D. persis...
【单选题】一、给加点字选择正确的读音。 树杈 ( )
【单选题】给带点字选择正确读音。 ( ) 挑 掉一茎
【单选题】给带点字选择正确读音。 ( ) 一 挑 白菜
【单选题】一、给加点字选择正确的读音。 树杈 ( )
【多选题】下列化合物中可以与 Tollens 试剂发生银镜反应的是 ( )