【单选题】(VBHEg)当一个井涌进入井中时,通常会首先检测到什么?
【单选题】下列选项中适用于数量金额式账页的是( )
【简答题】-----Did you watch the basketball match yesterday? -----Yes, I did. You know, my brother ________ in the match. A.is playing B.was playing C.has played D.had played
【单选题】青霉素仅适宜治疗下列哪种细菌引起的感染:;
【单选题】下列选项中适用于数量金额式账页的是( )。