【多选题】SQL功能中,数据控制DCL的常见命令有()
【单选题】即可催化氧化反应,也可催化还原反应的酶是
【单选题】—Must I finish the work today? —No, you .
【单选题】—Must I finish the paper tonight? —No, you _______ finish it tomorrow.
【单选题】— Must I finish the work today? — .
【单选题】—Must I finish the exercise this afternoon? —Yes, you ______, but you ______ finish it now.
【多选题】SQL功能中,数据操纵DML的常见命令有()
【单选题】— Must I finish the work today? — .
【单选题】—Must I finish the homework tonight? —No, you .You can finish it tomorrow.