What is the little girl doing?
A. Chating on line with her friend.
B. Watching her favorite TV program.
C. Singing Karaoke.
D. Playing computer game.
查看答案
Where is the little girl?
A. She's at the class room.
B. She's at an internet bar.
C. She's at her mother's office.
D. She's at home.
胚泡开始植入的时间大约相当于月经周期的第几天
A. 第11～12天
B. 第20～21天
C. 第6～7天
D. 第14天
字（word）数据长度为16位，由个字节组成，编号低的字节为高位字节，编号高的字节为低位字节。
A. 2
B. 3
C. 4
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