硬盘驱动器既可作为输入设备又可作为输出设备。
参考答案：对
_____ on-going division between English-speaking Canadians and French-speaking Canadians
is ______ major concern of the country. [ ]
A. The; /
B. The; a
C. An; the
D. An; /
一般规定，斗轮低压压力为（）
A、0.6---0.8MPa
B、0.8---1.2MPa
C、1.2---1.6Mpa
