在中断驱动I/O方式中，当外设要和CPU交换数据时，它就通过硬件电路给CPU一个信号，这个信号叫做______信号。
参考答案：中断请求
The nurse is giving home care instructions to a client who just had a cataract removed and an intraocular lens implanted. What should the nurse tell the client ？（）
A．Don't sleep on the operated side.
B．Wear the eye shield continuously for 2 weeks.
C．Aspirin may be taken for mild pain.
D．Straining during bowel movements is allowed.
软件开发工具直接涉及的标准有______
A．CORBA B．HTMLC．TCP/IP D．FTP
