逻辑门电路的输入和输出端只有两种状态,即()电平、()电平。
参考答案:高;低
根据短文内容和首字母提示,在下文空格处填入适当的词使短文完整。(每空一词)
Books bring us k____小题1:____ which enriches (丰富)our lives and b___小题2:___ us happiness.
All great men in the history of mankind(人类) l____小题3:____ books. There is no genius(天才) without books. We know that books are treasure of knowledge, and knowledge is power. Without it, we can achieve(取得) n___小题4:___. A man is blind and does not even know w____小题5:___he is doing if he is unable to read.
Books bring us h____小题6:___ as well as knowledge. They enable us not only to see through the past, but also to see into the f___小题7:_____.
Macaulay, a famous historian of England, once wrote to a little girl, “ If anyone would make me the greatest king that ever lived with palaces, fine dinners , wines, b____小题8:____ clothes and hundreds of servants, on condition that I should not read books, I would not be the king. I would rather be a p____小题9:____ man with a lot of books than a king w____小题10:___ any books in his splendid palace.
国产标准设备原价一般是指( )。
A.设备预算价格
B.设备制造厂交货价
C.出厂价与运费、装卸费之和
D.设备购置费用