【多选题】以下说法正确的是( )。
A.
若要表示0到63的十进制数据,使用二进制最少要用6位
【单选题】这篇演讲有两个要点(main points),每个要点下各有三个分要点(sub-points)。请根据以下的要点陈述,辨别此演讲的具体目标是什么1.An ideal form of land transportation should meet three major standards. A.It should be faster than running or walking. B.It ...
A.
To persuade my audience that bicycle riding is the ideal form of land transportation.
B.
To inform my audience that bicycle riding is the ideal form of land transportation.
C.
To persuade my audience that there are three standards for an ideal form of land transportation.
D.
To inform my audience the three standards for an ideal form of land transportation.
【判断题】Ideal standards, that are based on perfection, are unattainable and therefore discouraging to most employees.
【多选题】如图是一种1#电池,根据图片提供的特征有“1.5V”“+”“-”和“400mAh”,下列说法对的是
C.
理论上讲这种电池给负载提供400mA的电流时间可达1小时