.对一个并行寄存器来说,只要时钟脉冲到来,便可从输出端同时输出各位的数据。()
A. 对
B. 错
系统分析包括:
A. 问题识别
B. 可行性分析
C. 详细调查
D. 系统化分析、逻辑方案设计等
Ex.7-1 Listen to people speaking and decide what they are talking about.
A. likes
B. Safety.
C. Danger.
Dislikes.
EX.7-2Listentopeoplespeakinganddecidewhattheyaretalkingabout.
A. Education.
B. Document.
C. Payment.
D. Action.