用或非门组成的基本RS触发器的所谓“状态不定”发生在R、S加入信号()时。
A. 0,0
B. 0,1
C. 1,0
D. 1,1
Careful and detailed planning, plus a firm _________ hand, was an essential ingredient in the success of the book.
In terms of health condition, we must not forget that health ______ is brought about not by doctors but by patients themselves.
With the help of the textbook, you'll possibly speak, read and write English with fluency and ___________.