【单选题】采用电子计数器直接测频,不管计数量 N 为何值,最大的量化误差总是等于( )。
【单选题】采用电子计数器直接测频,不管计数值N为何值,最大的量化绝对误差总是等于
【简答题】采用电子计数器直接测频,不管计数量N为何值,最大的量化绝对误差总是等于()。 (A)+1个计数单位 (B)-1个计数单位 (C)±1个计数单位 (D)N个计数单位
【单选题】采用电子计数器直接测频,不管计数值 N 为何值,最大的量化绝对误差总是等于
【单选题】听力原文:M: Mind if I switch channels? Those TV commercials are killing me. W: How can you say that? Watch: 'Take Toshiba, take the world.' Fantastic! There's a product you can depend on. A powerful produ...
A.
Advantages of TV shopping.
B.
Their favorite TV channels.
C.
Beware of advertising on TV.
D.
Popularity of advertised products.
【单选题】The writer feels long bus rides are like TV shows because_____________
A.
the commercials both on TV shows and on billboards along the road are fun
B.
they both have a beginning, a middle, and an end, with commercials in every three or four minutes
C.
the drivers are always reckless on TV shows just as they are on buses
D.
both traveling and watching TV are not exciting
【简答题】若标准电阻的级别 0.1 、大小 0.2Ω ,则写成标准形式时其有效数字是 ( ) 位。
【判断题】钢材表面抵抗硬物压入产生塑性变形的能力称为硬度。
【单选题】采用电子计数器直接测频,不管计数量N为何值,最大的量化误差总是等于
【判断题】市场合格率越高,则表明供应商供货质量越好。