主机与外设传送数据时,采用()方式,CPU的效率最高。
参考答案:DMA
在下列各句的空白处填入一个适当的词,使句子意思完整、语法正确。
1. How q______ time passed. I've been in my hometown for two months.
2. It's our d______ to protect (保护) the environment.
3. I think this dictionary is h______ for your study.
4. Hurry up, or we won't c______ the early bus.
5. Don't be scared to make m______ when you speak a foreign language.
期货交易所因章程规定的营业期限届满而解散的,由()批准。
A.中国期货业协会
B.中国证监会
C.商务部
D.国家工商总局