具有多媒体功能的微型计算机系统中，常用的CD-ROM是（）
A．只读性光盘
B．半导体只读存储器
C．只读性硬盘
D．只读性大容量软盘
参考答案：A
句型转换
1. The bus stop is near our factory.(改为同义句)
The bus stop is not ________our factory.
2. She leaves home very early.(改为一般疑问句)
__ she ____home very early?
3. Mike often goes to school by bike.(对画线部分提问)
Mike often go to school?
4. Tom walks to school every day.(改为同义句)
Tom ______ school ____ every day.
人民代表大会制度所体现的原则是
A民主集中制 B多党合作
C政治协商 D区域自治
