合同的权利义务转让给第三人后，合同的当事人是( )。
A．原当事人双方B．债权人和第三人C．债务人和第三人D．原当事人一方和第三人
参考答案：D
小题1:My classmates are going to skate in the afternoon. (改为否定句)
My classmates ________ ________ to skate in the afternoon.
小题2: Mr. Zhao goes fishing every weekend. (改为反意疑问句)
Mr. Zhao goes fishing every weekend, ________ ________?
小题3:Bruce has art lessons twice a week. (对划线部分提问)
________ ________ does Bruce have art lessons?
小题4:I spend half an hour doing morning exercises every day. (改为同义句)
It ________ me half an hour to ________ morning exercises every day.
小题5:请等待我们的好消息!(完成译句)
Please ________ ________ our good news!
在著作权法中，计算机软件著作权保护的对象是 ______ 。
A．硬件设备驱动程序
B．计算机程序及其开发文档
C．操作系统软件
D．源程序代码
