【单选题】Natural selection is defined as the process ______ the course of evolution by preserving those traits best adapted for an organism's survival.
【判断题】对于刚体而言,不同的放置形式会影响其重心相对自身的位置。
【简答题】概括通常包括两种:经验概括和理论概括。而经验概括是从事实出发,以对个别事物所作的观察陈述为基础,上升为普遍的认识一一__________________________________的认识。
【判断题】Process course (technological process) is not part of production course.
【单选题】执行指令MOV AX,[BX][DI],如果(DS)=2100H, (BX)=0158H,(DI)=10A5H,则物理地址=
【单选题】The right form of word formation process for the word " hi-tech " is _______ .